libuid: Complete OO interfaces of libui in D

• libuid is a binding of libui. So you have to build libui first. libui now is a submodule of libuid to prevent compatible issues. Dynamic library is recommend as you can build your programm without other static libraries to link.

• Build existing examples with dub:

dub build --config=example1 --arch=x86_mscoff

or

dub build --config=example2 --arch=x86_64

You can use --arch to specify architecture of you platform. Note in windows, use --arch=x86_mscoff to create 32bit binary.

• Minimal Example:

import ui;

void main() {
    App.run(new Window("Hello").addOnClosing(_ => App.quit).show);
}