toolpp: add support for Hammer++ command sequences #840

Job	Run time
build (Debug, macos-latest)	2m 58s
build (Debug, windows-latest)	6m 6s
build (Release, windows-latest)	7m 42s
build (Debug, ubuntu-latest)	3m 32s
build (Release, ubuntu-latest)	4m 42s
build (Release, macos-latest)	3m 3s
	28m 3s

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