Prepare for ICU update

- libicule and libiculx do not exist anymore in newer ICU versions
  (harfbuzz replaces them), but we didn't actually use them, so remove
  them from the build feature and from the package dependencies
- Add namespace usage marcos since the newer ICU packages put ICU things
  in a namespace, making it easier to have multiple versions of ICU used
  side by side.

No functional change intended, but this makes it possible to build the
code with either ICU 57 (for gcc2) or 66 (for other architectures).

src/data/package_infos/arm/haiku

@@ -66,8 +66,6 @@ requires {
 	lib:libicudata
 	lib:libicui18n
 	lib:libicuio
-	lib:libicule
-	lib:libiculx
 	lib:libicutest
 	lib:libicutu
 	lib:libicuuc

src/data/package_infos/ppc/haiku

@@ -66,8 +66,6 @@ requires {
 	lib:libicudata
 	lib:libicui18n
 	lib:libicuio
-	lib:libicule
-	lib:libiculx
 	lib:libicutest
 	lib:libicutu
 	lib:libicuuc

src/data/package_infos/riscv64/haiku

@@ -66,8 +66,6 @@ requires {
 	lib:libicudata >= 57
 	lib:libicui18n >= 57
 	lib:libicuio >= 57
-	lib:libicule >= 57
-	lib:libiculx >= 57
 	lib:libicutest >= 57
 	lib:libicutu >= 57
 	lib:libicuuc >= 57

src/data/package_infos/sparc/haiku

@@ -66,8 +66,6 @@ requires {
 	lib:libicudata >= 57
 	lib:libicui18n >= 57
 	lib:libicuio >= 57
-	lib:libicule >= 57
-	lib:libiculx >= 57
 	lib:libicutest >= 57
 	lib:libicutu >= 57
 	lib:libicuuc >= 57

src/data/package_infos/x86/haiku

@@ -67,8 +67,6 @@ requires {
 	lib:libicudata >= 57
 	lib:libicui18n >= 57
 	lib:libicuio >= 57
-	lib:libicule >= 57
-	lib:libiculx >= 57
 	lib:libicutest >= 57
 	lib:libicutu >= 57
 	lib:libicuuc >= 57

src/data/package_infos/x86/haiku_secondary

@@ -27,8 +27,6 @@ requires {
 	lib:libicudata_%HAIKU_SECONDARY_PACKAGING_ARCH%
 	lib:libicui18n_%HAIKU_SECONDARY_PACKAGING_ARCH%
 	lib:libicuio_%HAIKU_SECONDARY_PACKAGING_ARCH%
-	lib:libicule_%HAIKU_SECONDARY_PACKAGING_ARCH%
-	lib:libiculx_%HAIKU_SECONDARY_PACKAGING_ARCH%
 	lib:libicutest_%HAIKU_SECONDARY_PACKAGING_ARCH%
 	lib:libicutu_%HAIKU_SECONDARY_PACKAGING_ARCH%
 	lib:libicuuc_%HAIKU_SECONDARY_PACKAGING_ARCH%

src/data/package_infos/x86_64/haiku

@@ -67,8 +67,6 @@ requires {
 	lib:libicudata >= 57
 	lib:libicui18n >= 57
 	lib:libicuio >= 57
-	lib:libicule >= 57
-	lib:libiculx >= 57
 	lib:libicutest >= 57
 	lib:libicutu >= 57
 	lib:libicuuc >= 57

src/data/package_infos/x86_64/haiku_secondary

@@ -28,8 +28,6 @@ requires {
 	lib:libicudata_%HAIKU_SECONDARY_PACKAGING_ARCH%
 	lib:libicui18n_%HAIKU_SECONDARY_PACKAGING_ARCH%
 	lib:libicuio_%HAIKU_SECONDARY_PACKAGING_ARCH%
-	lib:libicule_%HAIKU_SECONDARY_PACKAGING_ARCH%
-	lib:libiculx_%HAIKU_SECONDARY_PACKAGING_ARCH%
 	lib:libicutest_%HAIKU_SECONDARY_PACKAGING_ARCH%
 	lib:libicutu_%HAIKU_SECONDARY_PACKAGING_ARCH%
 	lib:libicuuc_%HAIKU_SECONDARY_PACKAGING_ARCH%

src/data/package_infos/x86_gcc2/haiku

@@ -67,8 +67,6 @@ requires {
 	lib:libicudata >= 57
 	lib:libicui18n >= 57
 	lib:libicuio >= 57
-	lib:libicule >= 57
-	lib:libiculx >= 57
 	lib:libicutest >= 57
 	lib:libicutu >= 57
 	lib:libicuuc >= 57

src/data/package_infos/x86_gcc2/haiku_secondary

@@ -27,8 +27,6 @@ requires {
 	lib:libicudata_%HAIKU_SECONDARY_PACKAGING_ARCH%
 	lib:libicui18n_%HAIKU_SECONDARY_PACKAGING_ARCH%
 	lib:libicuio_%HAIKU_SECONDARY_PACKAGING_ARCH%
-	lib:libicule_%HAIKU_SECONDARY_PACKAGING_ARCH%
-	lib:libiculx_%HAIKU_SECONDARY_PACKAGING_ARCH%
 	lib:libicutest_%HAIKU_SECONDARY_PACKAGING_ARCH%
 	lib:libicutu_%HAIKU_SECONDARY_PACKAGING_ARCH%
 	lib:libicuuc_%HAIKU_SECONDARY_PACKAGING_ARCH%

src/kits/locale/Collator.cpp

@@ -22,6 +22,9 @@
 #include <unicode/tblcoll.h>
 
 
+U_NAMESPACE_USE
+
+
 BCollator::BCollator()
 	:
 	fIgnorePunctuation(true)

src/kits/locale/Country.cpp

@@ -28,6 +28,9 @@
 #include <stdlib.h>
 
 
+U_NAMESPACE_USE
+
+
 BCountry::BCountry(const char* countryCode)
 	:
 	fICULocale(NULL)

src/kits/locale/DateFormat.cpp

@@ -27,6 +27,9 @@
 #include <vector>
 
 
+U_NAMESPACE_USE
+
+
 static const DateFormatSymbols::DtWidthType kDateFormatStyleToWidth[] = {
 	DateFormatSymbols::WIDE,
 	DateFormatSymbols::ABBREVIATED,

src/kits/locale/DateTimeFormat.cpp

@@ -22,6 +22,9 @@
 #include <unicode/smpdtfmt.h>
 
 
+U_NAMESPACE_USE
+
+
 BDateTimeFormat::BDateTimeFormat(const BLocale* locale)
 	: BFormat(locale)
 {

src/kits/locale/DurationFormat.cpp

@@ -22,6 +22,9 @@
 #include <TimeZonePrivate.h>
 
 
+U_NAMESPACE_USE
+
+
 // maps our unit element to the corresponding ICU unit
 static const UCalendarDateFields skUnitMap[] = {
 	UCAL_YEAR,

src/kits/locale/FormattingConventions.cpp

@@ -33,6 +33,9 @@
 #include <stdlib.h>
 
 
+U_NAMESPACE_USE
+
+
 // #pragma mark - helpers
 
 

src/kits/locale/Language.cpp

@@ -26,6 +26,9 @@
 #include <unicode/locid.h>
 
 
+U_NAMESPACE_USE
+
+
 BLanguage::BLanguage()
 	:
 	fDirection(B_LEFT_TO_RIGHT),

src/kits/locale/LocaleRoster.cpp

@@ -43,6 +43,7 @@
 
 using BPrivate::CatalogAddOnInfo;
 using BPrivate::MutableLocaleRoster;
+U_NAMESPACE_USE
 
 
 /*

src/kits/locale/LocaleRosterData.cpp

@@ -36,6 +36,9 @@
 #include <unicode/timezone.h>
 
 
+U_NAMESPACE_USE
+
+
 namespace BPrivate {
 
 

src/kits/locale/NumberFormat.cpp

@@ -21,6 +21,9 @@
 #include <unicode/numfmt.h>
 
 
+U_NAMESPACE_USE
+
+
 class BNumberFormatImpl {
 public:
 					BNumberFormatImpl();

src/kits/locale/RelativeDateTimeFormat.cpp

@@ -25,6 +25,9 @@
 #include <TimeUnitFormat.h>
 
 
+U_NAMESPACE_USE
+
+
 static const URelativeDateTimeUnit kTimeUnitToRelativeDateTime[] = {
 	UDAT_REL_UNIT_YEAR,
 	UDAT_REL_UNIT_MONTH,

src/kits/locale/StringFormat.cpp

@@ -19,6 +19,9 @@
 #include <unicode/msgfmt.h>
 
 
+U_NAMESPACE_USE
+
+
 BStringFormat::BStringFormat(const BLanguage& language, const BString pattern)
 	: BFormat(language, BFormattingConventions())
 {

src/kits/locale/TimeFormat.cpp

@@ -24,6 +24,9 @@
 #include <vector>
 
 
+U_NAMESPACE_USE
+
+
 BTimeFormat::BTimeFormat()
 	: BFormat()
 {

src/kits/locale/TimeUnitFormat.cpp

@@ -23,6 +23,10 @@
 #include <Locale.h>
 #include <LocaleRoster.h>
 
+
+U_NAMESPACE_USE
+
+
 // maps our unit element to the corresponding ICU unit
 static const TimeUnit::UTimeUnitFields skUnitMap[] = {
 	TimeUnit::UTIMEUNIT_YEAR,

src/kits/locale/TimeZone.cpp

@@ -20,6 +20,9 @@
 #include <Language.h>
 
 
+U_NAMESPACE_USE
+
+
 const char* BTimeZone::kNameOfGmtZone = "GMT";
 
 

src/system/libroot/add-ons/icu/ICUCategoryData.cpp

@@ -11,6 +11,9 @@
 #include <unicode/uchar.h>
 
 
+U_NAMESPACE_USE
+
+
 namespace BPrivate {
 namespace Libroot {
 

src/system/libroot/add-ons/icu/ICUCollateData.cpp

@@ -15,6 +15,9 @@
 #include <AutoDeleter.h>
 
 
+U_NAMESPACE_USE
+
+
 namespace BPrivate {
 namespace Libroot {
 

src/system/libroot/add-ons/icu/ICUCtypeData.cpp

@@ -27,6 +27,9 @@
 #endif
 
 
+U_NAMESPACE_USE
+
+
 namespace BPrivate {
 namespace Libroot {
 

src/system/libroot/add-ons/icu/ICULocaleBackend.cpp

@@ -16,6 +16,9 @@
 #include <ErrnoMaintainer.h>
 
 
+U_NAMESPACE_USE
+
+
 namespace BPrivate {
 namespace Libroot {
 

src/system/libroot/add-ons/icu/ICULocaleconvData.cpp

@@ -9,6 +9,9 @@
 #include <string.h>
 
 
+U_NAMESPACE_USE
+
+
 namespace BPrivate {
 namespace Libroot {
 

src/system/libroot/add-ons/icu/ICUMessagesData.cpp

@@ -10,6 +10,9 @@
 #include <string.h>
 
 
+U_NAMESPACE_USE
+
+
 namespace BPrivate {
 namespace Libroot {
 

src/system/libroot/add-ons/icu/ICUMonetaryData.cpp

@@ -12,6 +12,9 @@
 #include <strings.h>
 
 
+U_NAMESPACE_USE
+
+
 namespace BPrivate {
 namespace Libroot {
 

src/system/libroot/add-ons/icu/ICUNumericData.cpp

@@ -12,6 +12,9 @@
 #include <strings.h>
 
 
+U_NAMESPACE_USE
+
+
 namespace BPrivate {
 namespace Libroot {
 

src/system/libroot/add-ons/icu/ICUTimeConversion.cpp

@@ -13,6 +13,9 @@
 #include <unicode/gregocal.h>
 
 
+U_NAMESPACE_USE
+
+
 namespace BPrivate {
 namespace Libroot {
 

src/system/libroot/add-ons/icu/ICUTimeData.cpp

@@ -18,6 +18,10 @@
 
 #include "ICUMessagesData.h"
 
+
+U_NAMESPACE_USE
+
+
 namespace BPrivate {
 namespace Libroot {