Makes for cleaner and faster code.

This allows for proper emulation of the different CMP/LRP/MAD instructions.

Pica/CommandProcessor: Fix vertex decoding if multiple memory areas are accessed for different attributes.

This effectively adds support for a lot texture formats in the rasterizer.

This was caused by the framebuffer display widget not checking whether we are actually in a valid emulation state or not.

This is useful when doing crazy stuff like inheriting from BitField.

Maybe sometime when we actually implement that

We still don't know what the other parameters do, but they appear to be very similar to those of FormatThisUserSaveData.
Most likely FormatThisUserSaveData is just an alias for FormatSaveData with LowPathType Empty