Fixed a bug in VPC to do with game conditionals
* It was setting the GMOD conditional only for projects AFTER (and including) server/client.DLL which caused unintended files to be included in 64bit builds due to order of projects being different
engine.dll and dedicated.dll builds for 64bit + minor changes
* Fixed srcds_win64.exe trying to load 32 bit DLLs
* Some minor changes from x86-64 for consistency and cleanliness
Build server.dll 64bit