Merge the copies of these files from opengl32/libGLESv2
folders and put them in libANGLE

Bug: angleproject:3650
Change-Id: I3b20617f17d031c9ecf4676f4162eff586963ed5
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1688502Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>