Make QQuickIconImage public as IconImage

I would like be able to customize my buttons, like switch text color, position, etc... , but then i lose ability to colorize the icons.

I could implement my own IconLabel or use GraphicsEffects to colorize the Image, or workaround a Button to hide the text and render it in other way.

But the easier would be to have IconImage available.

Picture item from Quick.Extras works other way (Same as GamePad is not a Joystick)

It will also allow  to colorize icons that are not buttons.