merged glut_wrap.h into glxgears

I saw a post yesterday where someone had made a similar fork and they left out glut_wrap.h for unknown reasons and they had ~dozen people involved, so I'm following suit. (peer pressure ftw)

glut_wrap.h

@@ -1,11 +0,0 @@
-#ifdef HAVE_FREEGLUT
-	#include <GL/freeglut.h>
-#elif defined __APPLE__
-	#include <GLUT/glut.h>
-#else
-	#include <GL/glut.h>
-#endif
-
-#ifndef GLAPIENTRY
-	#define GLAPIENTRY
-#endif

glxgears.c

@@ -19,8 +19,17 @@
 #include <math.h>
 #include <stdio.h>
 #include <string.h>
+#ifdef HAVE_FREEGLUT
+	#include <GL/freeglut.h>
+#elif defined __APPLE__
+	#include <GLUT/glut.h>
+#else
+	#include <GL/glut.h>
+#endif
 
-#include "glut_wrap.h"
+#ifndef GLAPIENTRY
+	#define GLAPIENTRY
+#endif
 
 static GLint T0 = 0;
 static GLint Frames = 0;