Basic Character System (Day 2)

Progress Update Day 2:

Added player character data object.
Added a basic damage display (this can be further tweaked in the future to make hit feel more satisfying)
Added a basic health bar system to represent players' health.
Fixed desktop player hit is a bit off from the reticle center bug.  

The goal is still to have a playable prototype by the end of this Friday, hopefully, it's still on track.