Fixed up a few things. The scene is now it's javascript object. Updated the test code to show multiple objects being rendered and updated.

Features missing:

-No draw function call. Not sure if I really need this since there is not drawing related calls from javascript side

-Can't really do much right now. I am going to hook up Box2D to this in a few days (traveling)

-Can't delete objects.

-Can't access to dimentions; simple collision detection is made impossible

-Math library is still extremely simple. I am debating on how to do this at the moment, because the interlop to Vector2 in Monogame is not very good considering I have to cast doubles to floats and vice versa.

-Needs it's own Vector2, right now I am relying on x y doubles (no support for floats)