Merge GrOpList and GrRTOpList and rename to GrOpsTask.

Change-Id: I8f4f2218a30fd0541a8f79f7bb9850f9500cd243
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/236343
Commit-Queue: Greg Daniel <egdaniel@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
83 files changed