benchmark

[perf-counters] Fix pause/resume (#1643)

* [perf-counters] Fix pause/resume

Using `state.PauseTiming() / state.ResumeTiming()` was broken.

Thanks [@virajbshah] for the the repro testcase.

* ran clang-format over the whole perf_counters_test.cc

* Remove check that perf counters are 0 on `Pause`, since `Pause`/`Resume`
sequences would cause a non-0 counter value

* both upper and lower bound for the with/without resume counters

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Co-authored-by: dominic <510002+dmah42@users.noreply.github.com>