GORILLA.BAS fixed for QB64 & Linux

This is GORILLA.BAS -- the classic QuickBASIC example game of two gorilla's tossing explosives at each other while standing on buildings.

It's not perfect.  The REST() function had to be tweaked (in order to be QB64 compatible) and that results in the animations not being 100% right... but it works!

If you like this, you probably want to be reading The Lunduke Journal.  You can read the details for this over there as well.