MarioFIGHTer 1.5 MMX compatibility patch

For MMX v1.2.14 only.

1. Close SM64CoopDX.
2. Copy the included mmx_v1.2.14 folder into your SM64CoopDX mods folder.
3. Merge the folder and replace c-0_hitbox.lua and d-common_actions.lua.
4. Enable MMX v1.2.14 and MarioFIGHTer 1.5.

This adds MarioFIGHTer chip-damage support for MMX projectiles and
movement-directed ground dashes. These are complete replacement files, so
preserve any personal MMX edits before installing them.
