Gui usage for SingleTapMode and NumpadKeyboard enchantments

[Edios]

Is your feature request related to a problem? Please describe.
GUI is only working for t9mode. Single Tap Mode need some work to use gui object in the same way.
PR for GUI in t9mode: #15

NumpadKeyboard need one feature too:
Add Label for actual keyboard mode

Describe the solution you'd like
Pass Gui object to SingleTapMode, apply label and button updates for handle methods and special action buttons.