Swizzle update and G1EM add

1.9.2 Update

Major changes:

• Fix for 0 file size headers (missing attr headers with 0 offsets)
• New method for processing ex headers
• Added G1EM model format (still needs work)
• Added Nintendo Switch & PS4 textures size math (PS5 is hacky based on best understanding)
• Updated swizzles for:
  • Xbox 360 (@bartlomiejduda ReverseBox)
  • Nintendo Wii (@Kerilk noesis_bayonetta_pc plugin)
  • PS Vita (@fdwr Swizzle Patterns & @xdanieldzd GXTConvert)
  • Nintendo Wii U (@KillzXGaming Switch-Toolbox)
  • Direct-X 12 65kb Swizzle
  • PS4 (@fdwr Swizzle Patterns)
  • Nintendo Switch (@KillzXGaming Switch-Toolbox)
  • PS5 (id-daemon RawTex Cooker)

Other:

• Moved all added imports to Source.cpp
• Assert messages moved from debug log to popup messages
• Added channel flip for XBOX360
• Added struct for texture meta data