Tests: Add Battle Of Polytopia trace. Test: angle_perftests --gtest_filter="*battle_of_polytopia*" Bug: angleproject:7529 Change-Id: Ib9ad862fa5d2a3cd761bdbf42b2b91c2fe63f99b Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3780915 Commit-Queue: Cody Northrop <cnorthrop@google.com> Reviewed-by: Cody Northrop <cnorthrop@google.com>