SMM2 Ghost House Menu BGM

Adds support for 26.1.

Minimum supported version is now 1.20, but should still work down to 1.7.10. I promise nothing.

Removed the extra formatting using section signs on the music toasts in order to bring them closer to the Minecraft style.

Changed the artist on the music toast from Nintendo to Mahito Yokota, as they composed the original track for Super Mario 3D World.