World Game Update v0.0.0.6

Another update to World Game!

• Added ability to toggle between first person and third person view.
• Added Third Person Model for Player.
• Added ability to toggle Inventory GUI. (incomplete)
• Fixed issue where Test Entity Model is rendered backwards.
• Fixed issue where you couldn't place blocks when you are supposed to.
• Fixed collision bug where standing between y=64 and y=128 causes entity/player collision to jitter up and down.
• [back-end] Fixed bug with inventory list where it doesn't initiate with a size.

[back-end] = Features not really added to the game, but is inside the game's code.

Please if you find any bugs, report it. Have Fun! :)