Capture/Replay: handle paletted textures Add a method for recompressing paletted textures on capture. Bug: angleproject:7710 Change-Id: I11af0c1cd7c3b63850c5daf96eafcd3efce65f16 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4178311 Commit-Queue: Cody Northrop <cnorthrop@google.com> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Cody Northrop <cnorthrop@google.com>