Add config options to prometheus exporter #10280

Job	Run time
CMake test arm64 (with modern protobuf,grpc and abseil)	18m 53s
Bazel asan config	20m 36s
Bazel without bzlmod	16m 27s
Bazel noexcept	16m 35s
Bazel nortti	16m 22s
Bazel on MacOS	10m 53s
Bazel	17m 18s
Bazel with async export	17m 15s
Bazel tsan config	18m 20s
Bazel valgrind	9m 9s
Benchmark	14m 35s
CMake test (with abseil)	4m 46s
CMake clang 18 (maintainer mode, abiv2)	8m 15s
CMake clang 18 (maintainer mode, async)	8m 32s
CMake clang 18 (maintainer mode, sync)	8m 37s
CMake do not install test (with otlp-exporter)	14m 43s
CMake gcc 14 (maintainer mode, async)	12m 28s
CMake gcc 14 (maintainer mode, sync)	12m 39s
CMake install test (with abseil)	5m 4s
CMake test (with modern protobuf,grpc and abseil)	18m 20s
CMake msvc (maintainer mode)	7m 2s
CMake msvc (maintainer mode) with C++20	8m 54s
CMake test (with opentracing-shim)	4m 37s
CMake test (build shared libraries with otlp-exporter and static gRPC)	14m 50s
CMake test (with otlp-exporter)	14m 49s
CMake test (without otlp-exporter)	5m 9s
CMake C++14 test(GCC)	4m 43s
CMake C++17 test(GCC)	4m 46s
CMake C++20 test(Clang with libc++)	8m 57s
CMake C++20 test(GCC)	9m 3s
CMake C++23 test(Clang with libc++)	8m 50s
CMake C++23 test(GCC)	8m 39s
CMake test (without otlp-exporter and with async export)	5m 6s
Code coverage	11m 53s
Copyright	7s
DocFX check	51s
Format	57s
markdown-lint	6s
misspell	5s
Plugin -> CMake	56s
shellcheck	7s
CMake -> exporter proto	11m 58s
Bazel Windows	31m 17s
Plugin -> CMake Windows	6m 53s
CMake (With async export) -> exporter proto	12m 31s
CMake -> exporter proto (Build as DLL)	25m 9s
	7h 58m 2s

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