[BUILD] Accept path list in OPENTELEMETRY_EXTERNAL_COMPONENT_PATH #8864

Job	Run time
Bazel asan config	15m 9s
Bazel nortti	12m 3s
Bazel noexcept	11m 49s
Bazel on MacOS	18m 49s
Bazel	13m 8s
Bazel with async export	12m 20s
Bazel tsan config	12m 56s
Bazel valgrind	14m 15s
Bazel with external abseil	12m 23s
Benchmark	8m 34s
CMake test (with abseil)	4m 30s
CMake clang 14 (maintainer mode, abiv2)	14m 8s
CMake clang 14 (maintainer mode, async)	13m 52s
CMake clang 14 (maintainer mode, sync)	14m 17s
CMake do not install test (with otlp-exporter)	14m 21s
CMake gcc 12 (maintainer mode, async)	8m 23s
CMake gcc 12 (maintainer mode, sync)	8m 17s
CMake install test (with abseil)	4m 21s
CMake test (with modern protobuf,grpc and abseil)	18m 43s
CMake msvc (maintainer mode)	7m 30s
CMake test (with opentracing-shim)	4m 39s
CMake test (build shared libraries with otlp-exporter and static gRPC)	13m 7s
CMake test (with otlp-exporter)	13m 58s
CMake test (without otlp-exporter)	4m 53s
CMake C++14 test(GCC)	4m 0s
CMake C++17 test(GCC)	5m 21s
CMake C++20 test(Clang with libc++)	9m 12s
CMake C++20 test(GCC)	8m 24s
CMake test (without otlp-exporter and with async export)	4m 30s
Code coverage	12m 26s
Copyright	5s
DocFX check	58s
Format	12s
misspell	6s
Plugin -> CMake	1m 13s
markdown-lint	13s
CMake -> exporter proto	12m 18s
Bazel Windows	21m 25s
Plugin -> CMake Windows	7m 4s
CMake (With async export) -> exporter proto	12m 46s
CMake -> exporter proto (Build as DLL)	12m 7s
	6h 28m 45s

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