Removed Overlay.Shader property, you need to manage the field yourself and apply the shader before you draw.
Made all overlays compatible with the new changes.
* add basis for debug drawing raycasts
* rays
* this was too much work
* i assumed you could do string object stuff. you cant.
* fixed a crash
* Greatly improved DebugDrawingManager code with a struct and list as opposed to dictionary
* change default ray debug color from green to magenta
* reviewed changes
* reviewed changes and adds network message to physicsmanager so it works without much user config
