#20 Convert components to plugins

[Mike Reinstein]

to make adding components easier, convert the existing components to plugins written in javascript. NOTE: this could have a performance impact so it will require some exploration to determine an efficient way to do this.

[Mike Reinstein]

Expose rendering callbacks via javascript based plugins.

If performance is an issue we can try changing the renderer to generate component images which are drawn directly rather than re-rendering each frame. determine how to do translucent image rendering in java

[Mike Reinstein]

this could potentially be done by storing an image for each base component and have an event fire when the component needs to be repainted (like a "dirty" flag) when the dirty flag is set, generate the image for the component and clear the dirty flag. When rendering, render the image rather than drawing directly. NOTE: probably only containers need a rendering image. Normal components would be represented in thier respective parent container image.