Feature request: Keys to toggle mouselook modes

[MirceaKitsune]

A slight inconvenience that would be easy to solve is that at the moment, freelook can't be toggled and requires holding down a mouse button. There are two types of looking, rotating just the view (hold middle-mouse button) and steering the ship (hold right-mouse button): Please additionally allow a key bind for each mode, which toggles between operating the cursor to click on things and that mode of mouse looking. This would make manual navigation easier and more responsive, as well as for better combat as you need to look at other ships in order to shoot them. Thank you.