Overhaul internal resource management #2145

Job	Run time
Build apps (Foss, Debug, app)	5m 50s
Lint vitals (Foss, Beta, app)	6m 9s
Unit tests (Debug, test)	3m 33s
Build apps (Gplay, Debug, app)	5m 41s
Lint vitals (Foss, Release, app)	5m 54s
Unit tests (Debug, testFoss)	5m 51s
Lint vitals (Gplay, Beta, app)	6m 16s
Unit tests (Debug, testGplay)	5m 57s
Lint vitals (Gplay, Release, app)	6m 12s
Unit tests (Beta, test)	3m 18s
Unit tests (Beta, testFoss)	5m 44s
Unit tests (Beta, testGplay)	5m 44s
Unit tests (Release, test)	3m 23s
Unit tests (Release, testFoss)	6m 24s
Unit tests (Release, testGplay)	6m 0s
	1h 21m 56s

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