- Removes special sampling logic from the GX shader in favor of performing conversions using separate draw calls and swizzling
- Simplifies texture bindings
- Much more accurate EFB copy handling (still incomplete but better)
- Handle copy clears appropriately (color, alpha, depth) + GXSetDstAlpha copies
- Re-enables code for buffered texture uploads
- Adds `lastTextureUploadSize` to AuroraStats
- Use RG8 + swizzle for IA4/IA8