Enhance CDK support with nested stack handling #518

Job	Run time
Build and Test	2m 19s
Run lint	49s
comment-notification	0s
integration-test / acceptance-tests (3, 0)	20m 33s
integration-test / acceptance-tests (3, 1)	13m 59s
integration-test / acceptance-tests (3, 2)	21m 11s
acceptance-test / acceptance-tests (3, 0)	28m 55s
acceptance-test / acceptance-tests (3, 1)	30m 55s
acceptance-test / acceptance-tests (3, 2)	12m 53s
sentinel	2s
	2h 11m 36s

Provide feedback