added device manager #1430

Job	Run time
check-and-lint	15s
check-and-lint	15s
adapter-tests (16.x, ubuntu-latest)	1m 0s
adapter-tests (16.x, ubuntu-latest)	1m 0s
adapter-tests (16.x, windows-latest)	1m 10s
adapter-tests (16.x, windows-latest)	3m 32s
adapter-tests (16.x, macos-latest)	1m 11s
adapter-tests (16.x, macos-latest)	1m 24s
adapter-tests (18.x, ubuntu-latest)	1m 12s
adapter-tests (18.x, ubuntu-latest)	51s
adapter-tests (18.x, windows-latest)	1m 8s
adapter-tests (18.x, windows-latest)	4m 56s
adapter-tests (18.x, macos-latest)	1m 17s
adapter-tests (18.x, macos-latest)	1m 3s
adapter-tests (20.x, ubuntu-latest)	1m 4s
adapter-tests (20.x, ubuntu-latest)	54s
adapter-tests (20.x, windows-latest)	56s
adapter-tests (20.x, windows-latest)	4m 41s
adapter-tests (20.x, macos-latest)	1m 3s
adapter-tests (20.x, macos-latest)	1m 6s
deploy	0s
deploy	0s
	29m 58s

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