Add EGL GGP extensions. This CL adds two new extensions: * EGL_ANGLE_ggp_stream_descriptor: Introduces a new attribute to CreateWindowSurface. Allows the app to pass in a stream descriptor to VkCreateSurfaceKHR. Mirrors VK_GGP_stream_descriptor_surface. * EGL_ANGLE_swap_with_frame_token: Introduces a new function 'eglSwapBuffersWithFrameTokenANGLE'. This allows the app to pass a GGP frame token down to vkQueuePresentKHR. Mirrors VK_GGP_frame_token. Bug: angleproject:4078 Change-Id: I4313ac4c264e68999905049f661bc64b44f72fab Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1897315 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Cody Northrop <cnorthrop@google.com>