Fixed the FORBIDDEN error

I had to define the FORBIDDEN_SYMBOL_ALLOW_ALL ahead of everything else
Merge branch 'master' of https://github.com/DrItanium/AdventureEngine-Scummvm
Reintroduced platform detection

This is being done as a temporary measure so that I can actually implement the
game engine first and then figure out how to bring clips into the realm of
correctness with respect to SCUMMVM
Added more things to ignore
Reverted more of setup.h to its original setup
the platform detection features are no longer included in compilation
Removed SCUMMVM specific function names from tmpltcmp.h
Removed an extra #endif in tmpltcmp.h