gRPC is currently getting formatted with two different clang-format implementations, and due to some weirdness they have different include file orderings. This change introduces clang-format configuration to ensure that the two systems align - it's *highly* expected that this will need some maintenance going forward as the two systems evolve.
Closes#40905
PiperOrigin-RevId: 819606209
Sample output:
```
➜ grpc git:(otel-metrics-benchmark) ✗ bazel-bin/test/cpp/microbenchmarks/bm_stats_plugin
WARNING: All log messages before absl::InitializeLog() is called are written to STDERR
I0000 00:00:1721695619.615582 2126186 config.cc:257] gRPC experiments enabled: call_status_override_on_cancellation, call_tracer_in_transport, event_engine_dns, event_engine_listener, monitoring_experiment, pick_first_new, trace_record_callops, work_serializer_clears_time_cache
2024-07-22T17:46:59-07:00
Running bazel-bin/test/cpp/microbenchmarks/bm_stats_plugin
Run on (48 X 2450 MHz CPU s)
CPU Caches:
L1 Data 32 KiB (x24)
L1 Instruction 32 KiB (x24)
L2 Unified 512 KiB (x24)
L3 Unified 32768 KiB (x3)
Load Average: 1.16, 0.85, 0.85
***WARNING*** Library was built as DEBUG. Timings may be affected.
---------------------------------------------------------------------------
Benchmark Time CPU Iterations
---------------------------------------------------------------------------
BM_AddCounterWithFakeStatsPlugin 1738 ns 1738 ns 404265
BM_AddCounterWithOTelPlugin 757 ns 757 ns 928142
I0000 00:00:1721695621.304593 2126186 test_config.cc:186] TestEnvironment ends
```
<!--
If you know who should review your pull request, please assign it to that
person, otherwise the pull request would get assigned randomly.
If your pull request is for a specific language, please add the appropriate
lang label.
-->
Closes#37282
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/37282 from yijiem:otel-metrics-benchmark eeba3dfb5e2991e7093bfaa613ac89e9215043f5
PiperOrigin-RevId: 655286398
Craig Tiller