Add basic audio support #156

Job	Run time
build (ubuntu-latest, gcc, g++, Release)	3m 51s
build (ubuntu-latest, gcc, g++, Debug)	3m 2s
build (macos-latest, clang, clang++, Release)	3m 16s
build (windows-latest, cl, msvc, Debug)	2m 10s
build (macos-latest, clang, clang++, Debug)	1m 57s
build (windows-latest, cl, msvc, Release)	3m 4s
	17m 20s

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