Add macOS build support #75

Job	Run time
Unit test x64 ubuntu 22.04 for clock	3m 30s
Unit test x64 ubuntu 22.04 for layout	42m 47s
Unit test x64 ubuntu 22.04 for internalscheme	40m 59s
Unit test x64 ubuntu 22.04 for grid	4m 59s
Unit test x64 ubuntu 22.04 for dumpers-loaders	7m 40s
Unit test x64 ubuntu 22.04 for parallel grid CXX11=ON	58m 21s
Unit test x64 ubuntu 22.04 for coordinate	3m 3s
Unit test x64 ubuntu 22.04 for parallel grid CXX11=OFF	1h 13m 11s
Unit test x64 ubuntu 22.04 for settings	1m 4s
Unit test x64 ubuntu 22.04 for approximation	3m 6s
Unit test x64 ubuntu 22.04 for complex	42s
	3h 59m 22s

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