Includes much more state serialization. Notably Vertex Arrays were
missing as well as multiple GL render states. Also fixes many
serialization bugs. For example, we would not be using the correct
client array and pack/unpack state in the mid-execution capture. Also
depth/stencil attachments were missing from the capture.

Also fixes the replay sample to work with non-zero starting frames.

With these fixes we can run mid-execution replay of the T-Rex demo.

Bug: angleproject:3611
Change-Id: I6945eb9b30a5137be996956b43f074a0a750b333
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1895112
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Tim Van Patten <timvp@google.com>