Makes the footstep type controlled by a RAM flag, allowing it to be set by init ASM, main ASM, PLM, or more, removing the hardcoded footstep types in vanilla. Uses 2 bytes of RAM.
To use: LDA #$yyxx : STA !FootstepType where xx is the footstep type when walking and yy is the landing graphic type.
Also comes with a PLM that sets the footstep type to its room argument ($yyxx), and an XML file for SMART.