[Suggestion] Make energy mines addons selected together with the energy mine

[12345ieee]

Current behaviour:
* Buy the energy mine upgrades (lathe/discharger/cannon)
* Select (or mouseover) an energy mine
* There is neither a range indicator for the modules nor a targeting option on the UI

Analysis:
* Well, they are clearly separate and unselectable "ships"

Desired behaviour:
* The energy mine and its modules to be merged in a single "ship", so that it shows ranges and targeting controls

Is this annoying to change?
* Probably a lot