[Request] Improve repair drone behavior and add manual control

[Xkuka]

Repair drones do not work reliable in v7, Sometimes they start working out of combat, sometimes they start working when starting combat.
Repair drones should only work during combat if there is critical damage. What critical damage is might be a topic for discussion. I personally would say that engines are critical, but turret damage not.

Also when the player controls a ship with deployed repair drones and enters a gate, the drones are lost. This does not happen on NPC controlled ships. Drones should not be lost on the player controlled ships.

Furthermore, manual control over repair drones could help in many situations. There is no reason not to have this control other than the effort necessary to implement it.

Thanks