Loot, Goblins and GameManager

| Scripts
+ Created a Game Manager Script
+ Created a Loot Colour Enum
+ Made a base class for AI
+ Made a AICollect script

| Scene
+ Added an empty GameObject for GameManager
+ Added score Text
+ Added loot Text

| Loot
+ Can be picked up
+ Setup a colour system to allow for different points

| AI
+ Made the collect guy - moves towards the coins, picks them up and
gives the score