Copied the EQU files from WOLFSRC to wolf-logic/resource

The syntax of these files is extremely close to clips code. A simple
modification to make them into facts or instances and BAM we're ready to go.
Modified GFXE_SOD to be a series of defglobals
Renamed GFXE_WL1.EQU to GFXE_WL1.clp

This is done in preparation for information conversion
Added EngineGame.clp

This type will be used to define the different games supported by Wolf3d.
Migrated the different game files to their corresponding folders