Give some oomph back to the wall run jump

[OwenTheBell]

• [x] Scale jump lateral force based on facing direction
• [x] Allow some time before the backward force on the jump starts being applied

[OwenTheBell]

Scale the jump force with the player's facing relative to the wall. The farther away from the wall they are looking, the greater the jump force

[OwenTheBell]

It may feel intuitively better if the jump force is also proportional to the wall running speed (even if totally unrealistic)

[OwenTheBell]

The final wall run sequence before the end of the level needs to be tested to ensure it's not easily bypassed.

[OwenTheBell]

Maybe the horizontal speed should not start falling off right away. Allow a grace period before it begins decaying.