118 boost integration #389

Job	Run time
B2 msvc-14.2	8m 13s
B2 msvc-14.3	8m 38s
CMake msvc-14.2 Debug C++17	12m 50s
B2 gcc-11	4m 47s
CMake gcc-11 17 Debug	12m 19s
CMake msvc-14.2 Release C++17	9m 27s
B2 clang-14	4m 56s
CMake gcc-11 20 Release	10m 33s
CMake msvc-14.3 Debug C++20	13m 5s
CMake clang-11 17 Debug	5m 13s
CMake msvc-14.3 Release C++20	12m 35s
CMake clang-11 20 Debug	6m 10s
CMake clang-13 17 Release	7m 7s
CMake clang-13 20 Release	7m 50s
CMake clang-14 17 Debug -stdlib=libc++	10m 8s
CMake clang-14 20 Release -stdlib=libc++	10m 49s
	2h 24m 40s

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