#2 Button component

[Weston Pace]

We need an AButton component (based on JButton). Should be pretty easy to figure out but we also need to find a way to bind the button press to a CodeBehind. An alternative would be to bind the button press to a command. This should be figured out in parallel with the Menu component.

Done:
Button components can be added to the XML as children of containers.
Buttons will read the button title
Buttons will allow an action (triggered by key or mouse press) which should be bound to code somehow.