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
#include <stdio.h>
#define __swi
#include "oslib/osfile.h"
long PyOS_GetLastModificationTime(char *path, FILE *fp)
{
int obj;
bits load, exec, ftype;
if (xosfile_read_stamped_no_path(path, &obj, &load, &exec, 0, 0, &ftype)) return -1;
if (obj != osfile_IS_FILE) return -1;
if (ftype == osfile_TYPE_UNTYPED) return -1;
load &= 0xFF;
load -= 51;
if (exec < 1855548004U) load--;
exec -= 1855548004U;
return exec/100+42949672*load+(95*load)/100;
}