Add CMake build on Mac OS X. #662 #203

Job	Run time
build (macos-15, clang, clang++, -I$(brew --prefix boost)/include, #brew update brew install boos...	1m 47s
build (macos-15, $(brew --prefix llvm@18)/bin/clang, $(brew --prefix llvm@18)/bin/clang++, -I$(br...	6m 41s
build (ubuntu-24.04, gcc-14, g++-14, sudo apt install libboost-iostreams-dev qt6-base-dev pkgconf...	10m 37s
build (macos-15, clang, clang++, -I$(brew --prefix boost)/include, #brew update brew install boos...	6m 3s
	25m 8s

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