add release notes and bump version (#25) #179

Job	Run time
build / cmake_build (ubuntu-latest, Debug, gcc)	1m 5s
build / cmake_build (ubuntu-latest, Debug, clang)	3m 9s
build / cmake_build (windows-latest, Debug, cl)	4m 4s
build / cmake_build (macOS-latest, Debug, clang)	1m 13s
	9m 31s

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