Parabola doesn't ignore triggers

[WhipJr]

Trigger colliders are not ignored by the parabola pointer when trying to pass into them.

This is noted in #49 as well

EDIT: i have added a layer called lighting and set the raycast settings on the ViveNavMesh object to ignore it. I see this as a temporary fix as the triggers should be avoided by default (kinda the point of a trigger; to be entered)