Add VirtualQueryEx, MEMORY_BASIC_INFORMATION, and related constants

This stuff:
http://msdn.microsoft.com/en-us/library/windows/desktop/aa366907(v=vs.85).aspx
http://msdn.microsoft.com/en-us/library/windows/desktop/aa366775(v=vs.85).aspx
and some related constants.
Here's simple test app: http://pastebin.com/1UD703RE