Moved TextureStorage and Image into d3d

BUG=angle:688
Change-Id: I98ffa1082340a829a77fe5082958898b9c6ab1a2
Reviewed-on: https://chromium-review.googlesource.com/207054
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Tested-by: Brandon Jones <bajones@chromium.org>
16 files changed