WIP Timezone support

* BCountry can list the timezones applicable for the country
 * BCountry can give its name (for example France), or LocaleName (french (France)). The second one will later be moved to BLocale class along with 
most of the locale settings ; but this needs a bit of refactoring.
 * The Locale preflet now uses LocaleName instead of Name, since it deals with locales. The time preflet will want only country names, without te 
language information, for example.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37690 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/os/locale/Country.h

@@ -8,6 +8,7 @@
 
 
 class BBitmap;
+class BMessage;
 
 namespace icu_44 {
 	class DateFormat;
@@ -41,6 +42,7 @@ class BCountry {
 		virtual 		~BCountry();
 
 		virtual bool 	Name(BString&) const;
+		bool			LocaleName(BString&) const;
 		const char*		Code() const;
 		status_t		GetIcon(BBitmap* result);
 
@@ -106,6 +108,9 @@ class BCountry {
 		bool		MonGrouping(BString&) const;
 		virtual int32	MonFracDigits() const;
 
+		// timezones
+		status_t GetTimeZones(BMessage* timezones);
+
 	private:
 		icu_44::DateFormat* fICULongDateFormatter;
 		icu_44::DateFormat* fICUShortDateFormatter;

headers/os/locale/LocaleRoster.h

@@ -53,6 +53,8 @@ class BLocaleRoster {
 			// the message contains one or more 'language'-string-fields
 			// which contain the language-name(s)
 
+		status_t GetAvailableCountries(BMessage *) const;
+
 		status_t GetInstalledCatalogs(BMessage *, const char* sigPattern = NULL,
 			const char* langPattern = NULL,	int32 fingerprint = 0) const;
 			// the message contains...