Add skpbench jobs for CCPR

Adds new runs that benchmark just a handful of skps with CCPR.
This will also be Pixel's small debut on skpbench.

Bug: skia:
Change-Id: I7e4c3aeaa083ffe29c275f1c021ee62d177b6172
Reviewed-on: https://skia-review.googlesource.com/62302
Reviewed-by: Eric Boren <borenet@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
8 files changed