First Person Controller is Finished

There are two minor bugs: 

• sliding through the glass wall at high speeds, you can clip through and fall, I'll try to thicken the hitbox a bit 
• sliding and jumping on the same frame, you can take the sliding speed and use it in the air with less friction, so your speed becomes absurd

But that aside, the controller is finished. As you may have seen, I've started modelling props and gave them their base functionality. I'm still not happy with how holding items work, I'd like to give them a fixed rotation, but I'll work on that later.