Fixes an issue where MoreMcmeta would not recognize legacy sprite names in 1.19.4+.
Update to 1.20.2.
Adds API support for GUI metadata to prepare for an update to 1.20.2. Expands texture atlas support to atlases not on a predefined list. Fixes an issue where sprites in non-block atlases would not animate in 1.19.4 and 1.20.1.