[Feature Request] Easy API for drawing of debug shapes

[jason-wilmans]

Coming from Unity3D I am really used to debugging stuff I'm writing using their Debug.Draw* API.

I realize you can do that on your own (http://answers.xenko.com/questions/2097/how-to-draw-a-simple-line.html and http://answers.xenko.com/questions/2227/draw-a-vector-3d-line.html). But that is really work intensive.

I'm not too fond of their static API but it would be really nice to draw debug shapes like lines, rays, spheres, boxes in one or two lines.