add a few bazel tests to examples/cpp #284

	name: amd64 MacOS CMake Java

	on: [push, pull_request]

	jobs:
	# Building using the github runner environement directly.
	macos:
	runs-on: macos-latest
	strategy:
	matrix:
	build: [
	["Xcode", "Release", "ALL_BUILD", "RUN_TESTS", "install"],
	["Unix Makefiles", "Release", "all", "test", "install"]
	]
	fail-fast: false
	env:
	GENERATOR: ${{ matrix.build[0] }}
	BUILD_TYPE: ${{ matrix.build[1] }}
	BUILD_TARGET: ${{ matrix.build[2] }}
	TEST_TARGET: ${{ matrix.build[3] }}
	INSTALL_TARGET: ${{ matrix.build[4] }}
	steps:
	- uses: actions/checkout@v3
	- name: Swig install
	run: brew install swig
	- name: Check swig
	run: swig -version
	- name: Check java
	run: java -version
	- name: Check cmake
	run: cmake --version
	- name: Configure
	run: >
	cmake -S. -Bbuild -G "$GENERATOR" -DCMAKE_BUILD_TYPE="$BUILD_TYPE" -DCMAKE_INSTALL_PREFIX=install
	-DBUILD_CXX_SAMPLES=OFF -DBUILD_CXX_EXAMPLES=OFF
	-DBUILD_JAVA=ON -DSKIP_GPG=ON
	- name: Build
	run: cmake --build build --config "$BUILD_TYPE" --target "$BUILD_TARGET" -v
	- name: Test
	run: CTEST_OUTPUT_ON_FAILURE=1 cmake --build build --config "$BUILD_TYPE" --target "$TEST_TARGET" -v
	- name: Install
	run: cmake --build build --config "$BUILD_TYPE" --target "$INSTALL_TARGET" -v

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