[statsd] Add statsd exporter #6

	name: Statsd Metrics CI

	on:
	push:
	branches: "*"
	paths:
	- "exporters/statsd/**"
	- ".github/workflows/statsd.yml"
	pull_request:
	branches: [main]
	paths:
	- "exporters/statsd/**"
	- ".github/workflows/statsd.yml"
	jobs:
	cmake_linux:
	name: CMake on Linux
	runs-on: ubuntu-latest
	steps:
	- name: checkout opentelemetry-cpp-contrib
	uses: actions/checkout@v3
	with:
	path: opentelemetry-cpp-contrib
	submodules: "recursive"
	- name: checkout opentelemetry-cpp
	uses: actions/checkout@v3
	with:
	repository: "open-telemetry/opentelemetry-cpp"
	ref: "v1.20.0"
	path: "opentelemetry-cpp"
	submodules: "recursive"
	- name: setup
	run: \|
	sudo apt update -y
	sudo apt install -y --no-install-recommends --no-install-suggest \
	build-essential \
	cmake \
	ninja-build \
	ca-certificates wget git valgrind lcov
	- name: run tests
	run: \|
	sudo $GITHUB_WORKSPACE/opentelemetry-cpp/ci/setup_googletest.sh
	mkdir -p "$GITHUB_WORKSPACE/opentelemetry-cpp/build"
	cd "$GITHUB_WORKSPACE/opentelemetry-cpp/build"
	cmake .. -G Ninja -DOPENTELEMETRY_EXTERNAL_COMPONENT_PATH=$GITHUB_WORKSPACE/opentelemetry-cpp-contrib/exporters/statsd
	cmake --build . -j$(nproc)
	ctest -j1 --output-on-failure

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