mime_db: Add entries with sniff rules for DjVu and XPS.

These formats are supported by DocumentViewer.

src/data/mime_db/application/vnd.ms-xpsdocument

@@ -0,0 +1,16 @@
+
+resource(0, "BEOS:TYPE") #'MIMS' "application/x-vnd.Be-meta-mime";
+
+resource(1, "META:TYPE") "application/vnd.ms-xpsdocument";
+
+resource(2, "META:SNIFF_RULE") "0.50 (\"PK\\003\\004\") [0:512]('_rels/.rels') [0:512]('Documents/1/')";
+
+resource(3, "META:S:DESC") #'MSDC' "XPS document";
+
+resource(4, "META:L:DESC") #'MLDC' "Microsoft® XPS document";
+
+resource(5, "META:EXTENS") message(234) {
+	"extensions" = "xps",
+	"extensions" = "oxps",
+	"type" = "application/vnd.ms-xpsdocument"
+};

src/data/mime_db/image/vnd.djvu

@@ -0,0 +1,13 @@
+
+resource(0, "BEOS:TYPE") #'MIMS' "application/x-vnd.Be-meta-mime";
+
+resource(1, "META:TYPE") "image/vnd.djvu";
+
+resource(2, "META:SNIFF_RULE") "0.50 ([12]'DJVU' | [12]'DJVM')";
+
+resource(3, "META:S:DESC") #'MSDC' "DjVu media format";
+
+resource(4, "META:EXTENS") message(234) {
+	"extensions" = "djvu",
+	"type" = "image/vnd.djvu"
+};