normtag: add more alternatives

Author: sentriz

tags/normtag/normtag.go

@@ -19,8 +19,8 @@ const (
 	AlbumArtists       = "ALBUMARTISTS"        //tag: alts "ALBUM_ARTISTS"
 	AlbumArtistCredit  = "ALBUMARTIST_CREDIT"  //tag: alts "ALBUM_ARTIST_CREDIT"
 	AlbumArtistsCredit = "ALBUMARTISTS_CREDIT" //tag: alts "ALBUM_ARTISTS_CREDIT"
-	Date               = "DATE"                //tag: alts "YEAR" "RELEASEDATE" "TDRC" "TYER" "©DAY" "TYE"
-	OriginalDate       = "ORIGINALDATE"        //tag: alts "ORIGINAL_YEAR"
+	Date               = "DATE"                //tag: alts "YEAR" "RELEASEDATE" "TDRC" "TYER" "TDAT" "©DAY" "TYE"
+	OriginalDate       = "ORIGINALDATE"        //tag: alts "ORIGINAL_YEAR" "TDOR" "TORY"
 	MediaFormat        = "MEDIA"
 	Label              = "LABEL"         //tag: alts "TPUB"
 	CatalogueNum       = "CATALOGNUMBER" //tag: alts "CATALOGNUM" "CAT#" "CATALOGID" "CATNUM"