Add ResidualVM support

[ResidualVM](http://www.residualvm.org/) is a cross-platform 3D game interpreter which allows you to play LucasArts' Lua-based 3D adventures: Grim Fandango and Escape from Monkey Island.

Copied the ScummVM runner and changed a few options. Won't install since Lutris doesn't yet host it. Mind throwing it up:
http://www.residualvm.org/downloads/residualvm-linux32.tar.gz
http://www.residualvm.org/downloads/residualvm-linux64.tar.gz