Implement resetCommandPool #44

Job	Run time
build (ubuntu-latest, Debug, gcc)	32s
build (ubuntu-latest, Debug, clang)	30s
build (windows-latest, Release, cl)	56s
build (ubuntu-latest, Release, clang)	38s
build (ubuntu-latest, Release, gcc)	20s
build (windows-latest, Debug, cl)	1m 47s
	4m 43s

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