Causes this RunLevelController to move to the specified run level for
all RunLevel instances (identified by
RunLevelControllerIndicator), orchestrating the appropriate
lifecycle events.
Services set to have a non-validating run level mode will be
activated by their associated run level service or through
injection into another service.
Services set to have a validating run level mode will be activated
and deactivated by their associated run level service but may also
be activated through injection into another service.