Added Makefile for building syborg-graphicswrapper using GCC
At present the build fails due to the following missing headers:
KhronosAPIWrapper.h
VirtualVideoInterfaceConstants.h
platformthreading.h
protocol_MGraphicsVHWCallback.h
#ifndef _SDLname_h_
#define _SDLname_h_
#if defined(__STDC__) || defined(__cplusplus)
#define NeedFunctionPrototypes 1
#endif
#define SDL_NAME(X) SDL_##X
#endif /* _SDLname_h_ */