UE5.4 support, struct names, binrw

[scottanderson]

• Complete rewrite of model structs using binrw, with ~90% of types completely derived.
• Struct names are based on the corresponding Unreal Engine types.
• Support for Palworld save files through dedicated types.
• Fixes Palworld test are slow #56
• Fixes Unable to read save file for Medieval Dynasty #103
• Fixes Improve the separation of Property tags from property values #114
• Fixes [UE5.4] Property tag serialization support #134

Incomplete:

• Serde