Add Bellyslide Functionality

[pizzatree]

• Set animation bool that we are in belly slide
• Add a sound to signify it starting
• Add a dragging sound effect when velocity is over a certain value
• Enable a particle effect of snow flying behind the penguin (make sure to do world space)
• Either add/scale the velocity or switch physics materials to get more momentum going?
• Revert changes but maintain velocity (decreasing over time to a normal value) when coming out

[pizzatree]

Added basic functionality in f9a4aea
Currently using Physic Materials to achieve this

• Either add/scale the velocity or switch physics materials to get more momentum going?
• Revert changes but maintain velocity (decreasing over time to a normal value) when coming out

Remaining

• Set animation bool that we are in belly slide
• Add a sound to signify it starting
• Add a dragging sound effect when velocity is over a certain value
• Enable a particle effect of snow flying behind the penguin (make sure to do world space)

[pizzatree]

Clamp relative horizontal velocity, prevent backwards movement