[SUGGESTION] Warning when a train arrives at a non-cybersyn station

[RomanKornev]

I was having an issue with my trains routing to full stations. Turns out a couple of stations in the depot were missing the combinator, so the trains were basically just repeating the last route again if routed to those stations.

A quick way to check is to try and create a blueprint of the depot and see if the counts of stations vs combinators match.

But it would be nice if there was an automatic way to detect this, similar to when a train arrives with a non-empty wagon.