train path visualisation in the full-screen map

[joshinils]

when i hover over any train in automatic mode it would be nice to see where it is going.

likewise for train stops to see which trains are going there.
maybe even highlight any trains that have that stop in their schedule but are heading somewhere else.
conversely, when i hover over a train, highlight all other stops aswell as its current destination.

if multiple stops are available sharing the same name, the train has one particular "in mind", only highlighting this one via the path could be helpful to see why it is stopped if it has a clear path somewhere else.
stops with the same name could share a distinct color.

similarly, if i hover over a passive provider chest i can see which bots are going there to pick something up. so i think this would make sense.

if it isnt too much of a performance hog, displaying all next stops on the schedule as a path could also be interesting. this could be usefull to optimize the order of stops if that is appropriate for the network one has built.