New stunt: feet forward dive about doubleaction

[TomyLobo]

I've always wanted to put the feet-first slide (duck+stunt) on its own bind.
That way, it's accessible to more people.

[AbrahamBrookes]

This is different to the duck slide, it's a dive, like https://www.youtube.com/watch?v=KyibMX-sWD8 with the feet first, so that you can land on things in the duck slide after diving.

I like having the more advanced moves require a combination of keys, it increases the skill ceiling of the game. And considering that this is a purely cosmetic move I think having it regaled to the higher skill tier won't negatively impact the newer players.

[TomyLobo]

oh cosmetic only makes sense