Show drone info on mouseover

[barrybecker4]

It would me nice if information about the drone such as hitpoints, amount of energy, speed, etc, could be shown in a tooltip or sepearate panel when moused over.

[cswinter]

This would be nice to have! I'm not planning to add any new features currently, but at least there's a showText method you can use to display any text on top of a drone.