[Exporter] Group spans by resource and instrumentation scope in OTLP export requests #8570

Job	Run time
Bazel noexcept	17m 59s
Bazel asan config	14m 25s
Bazel nortti	23m 59s
Bazel on MacOS	15m 7s
Bazel	20m 22s
Bazel with async export	19m 28s
Bazel tsan config	29m 7s
Bazel valgrind	24m 16s
Bazel with external abseil	20m 46s
Benchmark	12m 9s
CMake test (with abseil)	7m 1s
CMake clang 14 (maintainer mode, async)	17m 16s
CMake clang 14 (maintainer mode, sync)	17m 39s
CMake gcc 4.8 (with otlp exporter)	16m 27s
CMake do not install test (with otlp-exporter)	28m 9s
CMake gcc 4.8 (without otlp exporter)	7m 54s
CMake gcc 12 (maintainer mode, async)	11m 3s
CMake gcc 12 (maintainer mode, C++11, async)	16m 5s
CMake gcc 12 (maintainer mode, sync)	10m 46s
CMake test (with modern protobuf,grpc and abseil)	37m 44s
CMake install test (with abseil)	6m 35s
CMake msvc (maintainer mode)	11m 8s
CMake test (with opentracing-shim)	5m 53s
CMake test (build shared libraries with otlp-exporter and static gRPC)	24m 17s
CMake test (with otlp-exporter)	25m 55s
CMake test (without otlp-exporter)	7m 40s
CMake C++20 test(Clang with libc++)	17m 38s
CMake C++20 test(GCC)	15m 8s
CMake test (without otlp-exporter and with async export)	9m 41s
Code coverage	13m 38s
Copyright	11s
DocFX check	58s
Format	18s
markdown-lint	8s
misspell	7s
Plugin -> CMake	1m 11s
CMake -> exporter proto	26m 54s
Bazel Windows	39m 21s
Plugin -> CMake Windows	11m 41s
CMake (With async export) -> exporter proto	22m 32s
CMake -> exporter proto (Build as DLL)	17m 5s
	10h 25m 41s

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