Platform GTFO (Stop rocket deliveries when leaving)

Fixes the bug(?) where platforms do not stop getting deliveries while some are still on the way despite wanting to leave. Works by triggering the next stop in the schedule as if the user had clicked in the GUI. (See mod page) Useful if your Gleba hauler wants to leave after a time, but a slow trickle of resources stops it from leaving. The mod should fix it for all platforms, by automatically evaluating wait conditions. But can also be triggered to leave using a circuit.