FE/Common/VBoxKeyboard: add US international keyboard with alternative 102nd key.
FE/Common/VBoxKeyboard: added US Colemak layout (ends with "k").
FE/Common/VBoxKeyboard: added US Colemac layout.
*: rebrand Sun (L)GPL disclaimers
Common/VBoxKeyboard: file header cleanup.
FE/Qt and Common: move the X11 keyboard library out of the GUI