Include docs samples in solution build (#751) #716

Job	Run time
build (ubuntu-latest, Debug)	3m 55s
build (ubuntu-latest, Release)	3m 29s
build (windows-latest, Debug)	8m 3s
build (macos-latest, Debug)	3m 19s
build (macos-latest, Release)	2m 11s
build (windows-latest, Release)	4m 34s
publish-coverage / publish-coverage	42s
	26m 13s

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