Add the ability to lean while prone.

Leaning while prone is a feature in a lot of semi-realistic shooters and would fit perfectly in Sandstorm. I don't think it would take many resources and would allow for some really good angles to be held.

@Pacalis Great to see it's not just me. That post is pretty old so always good to get more traction for the idea.

Hello all,

Thanks for the feedback. I'll pass it on to the team.