Adds a feature where pressing jump boosts the speed of roll instead of jumping out of it.
Default rolling speed.
If rolling exceeds this speed you will be thrown out of roll.
The amount your speed increases every frame while boosting.
The amount your speed decreases every frame while not boosting and above default speed.
Multiplier for the speed kept when getting thrown out of roll by exceeding max speed.
To disable the roll boosting, set Default speed and Max speed to the same value, and set Speed boost to something really low like 0.01