Also added Depth32 & Depth16 texture data upload tests.

Bug: angleproject:2634
Change-Id: I103f1cda1dc915f0dc8b04f7aaa2d8c0f9220cda
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1919281
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>