Initial commit of GameObjects

Initial commit of GameObjects
Updated Vector2 class to use doubles.,
Merge branch 'steven' into development
Merge branch 'development' into Edwin

* development:
  Attached graphics manager
  Simple Graphics Api

Conflicts:
	C#/LD31.csproj
First step implementation of Window
Merge branch 'Edwin' into steven

* Edwin:
  Updated Vector2 class to use doubles.,
  Initial commit of GameObjects

Conflicts:
	C#/LD31.csproj