Auto Serialization

[isXander]

Currently, YACL offers no way for a developer to save and load their configuration. My initial stance was that this library doesn't serve that purpose and isn't relevant.

However, when porting Cull Less Leaves I realised two things:

• Another library to serve this purpose would not be convenient
• Creating a badly implemented saving and loading process for each mod is also not convenient.

Having this functionality built-in has a few benefits:

• Config file can be easily structures into YACL's categories and groups
• It's convenient
• It matches the functionality of similar libraries (namely Cloth Config)