Add AtomicCounterIncrement test case Add AtomicCounterIncrement test case. BUG=angleproject:3246 Change-Id: I6e74f349b758c3ae9fcb44a14e70d36495406dfd Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1768017 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>