Move GLES20 source into standard locations
Move Khronos headers into their respective components, to be exported by each.
Remove hostthreadadapter as nothing outside of the vghwapiwrapper, which now contains the code, needs it
/*
* Skeleton egl.h to provide compatibility for early GLES 1.0
* applications. Several early implementations included gl.h
* in egl.h leading applications to include only egl.h
*
* $Revision: 6252 $ on $Date:: 2008-08-06 16:35:08 -0700 #$
*/
#ifndef __legacy_egl_h_
#define __legacy_egl_h_
#include <EGL/egl.h>
#include <GLES/gl.h>
#endif /* __legacy_egl_h_ */