build: add initial meson support #112

Job	Run time
linux (g++, g++, 7, -DBUILD_UVW_SHARED_LIB=ON)	1m 7s
linux (g++, g++, 7, -DBUILD_UVW_LIBS=ON)	1m 9s
linux (g++, g++, 7, -DBUILD_UVW_LIBS=OFF)	1m 18s
linux (g++, g++, 8, -DBUILD_UVW_SHARED_LIB=ON)	1m 2s
linux (g++, g++, 8, -DBUILD_UVW_LIBS=ON)	1m 18s
linux (g++, g++, 8, -DBUILD_UVW_LIBS=OFF)	1m 4s
linux (g++, g++, 9, -DBUILD_UVW_SHARED_LIB=ON)	1m 29s
linux (g++, g++, 9, -DBUILD_UVW_LIBS=ON)	1m 23s
linux (g++, g++, 9, -DBUILD_UVW_LIBS=OFF)	57s
linux (clang, clang++, 8, -DBUILD_UVW_SHARED_LIB=ON)	1m 15s
linux (clang, clang++, 8, -DBUILD_UVW_LIBS=ON)	1m 5s
linux (clang, clang++, 8, -DBUILD_UVW_LIBS=OFF)	1m 7s
linux (clang, clang++, 9, -DBUILD_UVW_SHARED_LIB=ON)	1m 4s
linux (clang, clang++, 9, -DBUILD_UVW_LIBS=ON)	1m 3s
linux (clang, clang++, 9, -DBUILD_UVW_LIBS=OFF)	1m 0s
linux (clang, clang++, 10, -DBUILD_UVW_SHARED_LIB=ON)	58s
linux (clang, clang++, 10, -DBUILD_UVW_LIBS=ON)	1m 11s
linux (clang, clang++, 10, -DBUILD_UVW_LIBS=OFF)	1m 1s
linux (clang, clang++, 11, -DBUILD_UVW_SHARED_LIB=ON)	1m 7s
linux (clang, clang++, 11, -DBUILD_UVW_LIBS=ON)	1m 7s
linux (clang, clang++, 11, -DBUILD_UVW_LIBS=OFF)	1m 11s
	23m 56s

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