Feat/pkg manager improvements (#491) #1517

Job	Run time
build	5m 50s
test scaffold-cli (features)	9m 3s
test reporter	5m 31s
test registry-cli	4m 39s
test scaffold-cli (examples 15-27)	9m 46s
test scaffold-cli (build_clients)	10m 54s
test scaffold-cli (examples 1-14)	11m 29s
	57m 12s

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