Overhaul internal resource management #2141

Job	Run time
Build apps (Foss, Debug, app)	6m 0s
Unit tests (Debug, test)	3m 27s
Build apps (Gplay, Debug, app)	5m 55s
Unit tests (Debug, testFoss)	5m 24s
Lint vitals (Foss, Beta, app)	5m 49s
Unit tests (Debug, testGplay)	5m 38s
Unit tests (Beta, test)	3m 51s
Lint vitals (Foss, Release, app)	6m 18s
Unit tests (Beta, testFoss)	5m 35s
Lint vitals (Gplay, Beta, app)	6m 36s
Unit tests (Beta, testGplay)	5m 38s
Lint vitals (Gplay, Release, app)	5m 55s
Unit tests (Release, test)	3m 54s
Unit tests (Release, testFoss)	5m 41s
Unit tests (Release, testGplay)	5m 42s
	1h 21m 23s

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