do proper passthrough on eglCreateImageKHR
correct eglCreateImageKHR implementation

call the correct symbol, and also handle wayland.
On the road to sharing Wayland buffers.
Fix wseglCreatePixmapDrawable using server_wlegl_buffer.
Fix glEGLImageTargetTexture2DOES
Fix frame_callback to do the right thing.
Fix colors on buffers.
Hack around incorrect stride.