Ports timed_action_flags & centralizes do_afters (#2865) #16732

Job	Run time
Compile Maps	52s
Run Linters	2m 53s
Windows Build	5m 2s
Integration Tests (BASIC_TESTS) / run_integration_tests	3m 9s
Integration Tests (CREATE_AND_DESTROY_TEST) / run_integration_tests	2m 43s
Integration Tests (PLANET_GEN_TEST) / run_integration_tests	5m 3s
Integration Tests (RUIN_PLACEMENT_TEST) / run_integration_tests	4m 42s
Integration Tests (SHIP_PLACEMENT_TEST) / run_integration_tests	10m 16s
	34m 40s

Provide feedback