The genre_db should really be controlled from within the Genre tag,
so this patch adds functions to find or create Genre tags to the tags
namespace.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
- This tag now inherits from GenericTag.
- Add a Genre-specific unit test.
- Remove the genre tag section of the DESIGN file.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>