Move CopyOps to CopyRenderTask.

This also means copies are no longer part of OpList or GpuCommandBuffer.

Change-Id: I234de2c93ca13e069d7e4423a3c8b292be2eb500
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/235831
Commit-Queue: Greg Daniel <egdaniel@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
30 files changed