[Editor] Show Usage of Scripts

[Greendogo]

The recent talk of scripts reminded me- unlike other references you can't view usage information about scripts. This would make debugging easier; I think the request speaks for itself, so I'll leave it at that.

[Zini]

The search function (yet to be implemented) should cover that.

[Greendogo]

Great, that should be handy for people doing heavily scripted work. The vanilla CS sucks for that kind of thing.