Allow ships without reverse thrust

[sfiera]

Ares ships have reverse thrusters and can stop simply. EV ships do not, and must rotate to fire their forward thrusters. It would be nice to support that in Ares too.

I did a quick experiment with this. It’s not too hard to change the “decelerate” key to instead rotate a ship to its inverse velocity vector. However, AI ships don’t understand how to use it. In my experiment, they looped around their destination, unable to stop. So, mainly the difficulty here is the AI.