GE2 GUI work in progress 1.1

Hi.

Just wanted to show a little progress with the new GUI system. Check this video:



It shows basic GUI system in action. One of the key features displayed in this video are:

1. Working event system. Mouse Click,Hover,Move
2. Working controls : button , drag_box, resize_box
3. Text Alignment - shows that any text in any control can be aligned either to one edge or stretched between different edges.
4. Anchor and dock in action. Inspired by .NET and quite similar to it.
5. Ability to manually override close_button on a window. Look how one window doesn't has close button.
6. Minimum and maximum sizes for the control. When the control is resized these values are applied.

A few things still needs a little work:

1. Scissor - The problem is that some controls break away from their parent container edges.
2. Add Enabled/Disabled states.
2. Add other controls...