Scene Manager

[romanlarionov]

Right now, there is no way to manage objects in the scene. They have no relationship to one another and you have to hard code every object you want to spawn manually.

A Scene class needs to be added to account for this. This should have a "Scene Construction" stage at initialization time as well as the ability to be changed during run time.

Some sort of file type (Collada, XML, JSON) should be used for this description.