Move atomic counter uniform range counter to executable. This makes the code more consistent with the other ranges. It will make way for future refactorings to moving more uniform code to the executable. Bug: angleproject:3570 Change-Id: Ie365c0e184039f813f19d3f38b401ad8a0b72120 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3359001 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Tim Van Patten <timvp@google.com> Commit-Queue: Jamie Madill <jmadill@chromium.org>