Update Khronos-supplied headers to r33100

As retrieved from opengl.org and khronos.org. Maintained the APPLE hack
in GL/glext.h manually. Added gl32.h.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Acked-by: Dave Airlie <airlied@redhat.com>
diff --git a/include/GL/glext.h b/include/GL/glext.h
index 811af0d..4753575 100644
--- a/include/GL/glext.h
+++ b/include/GL/glext.h
@@ -33,7 +33,7 @@
 ** used to make the header, and the header can be found at
 **   http://www.opengl.org/registry/
 **
-** Khronos $Revision: 32957 $ on $Date: 2016-06-09 17:03:08 -0400 (Thu, 09 Jun 2016) $
+** Khronos $Revision: 33061 $ on $Date: 2016-07-14 20:14:13 -0400 (Thu, 14 Jul 2016) $
 */
 
 #if defined(_WIN32) && !defined(APIENTRY) && !defined(__CYGWIN__) && !defined(__SCITECH_SNAP__)
@@ -53,7 +53,7 @@
 #define GLAPI extern
 #endif
 
-#define GL_GLEXT_VERSION 20160609
+#define GL_GLEXT_VERSION 20160714
 
 /* Generated C header for:
  * API: gl
@@ -8836,6 +8836,11 @@
 #define GL_INTERLACE_READ_INGR            0x8568
 #endif /* GL_INGR_interlace_read */
 
+#ifndef GL_INTEL_conservative_rasterization
+#define GL_INTEL_conservative_rasterization 1
+#define GL_CONSERVATIVE_RASTERIZATION_INTEL 0x83FE
+#endif /* GL_INTEL_conservative_rasterization */
+
 #ifndef GL_INTEL_fragment_shader_ordering
 #define GL_INTEL_fragment_shader_ordering 1
 #endif /* GL_INTEL_fragment_shader_ordering */