Heavily optimize decomposition code #10719

Job	Run time
Run Linters	2m 12s
Collect data for other tasks	13s
Compile Maps	2m 26s
Windows Build	1m 59s
Integration Tests (blueshift) / run_integration_tests	11m 51s
Integration Tests (boxstation) / run_integration_tests	11m 38s
Integration Tests (deltastation) / run_integration_tests	12m 6s
Integration Tests (icebox) / run_integration_tests	11m 23s
Integration Tests (kilostation) / run_integration_tests	11m 28s
Integration Tests (metastation) / run_integration_tests	11m 14s
Integration Tests (multiz_debug) / run_integration_tests	10m 31s
Integration Tests (ouroboros) / run_integration_tests	11m 43s
Integration Tests (northstar) / run_integration_tests	12m 11s
Integration Tests (runtimestation) / run_integration_tests	10m 42s
Integration Tests (tramstation) / run_integration_tests	11m 47s
Integration Tests (voidraptor) / run_integration_tests	11m 45s
Alternate Tests (515, 1627, runtimestation) / run_integration_tests	9m 40s
Check Alternate Tests	1s
Compare Screenshot Tests	15s
	2h 35m 5s

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