QRadioGroupBox and QCheckGroupBox with abstraction class

Add QAbstractButtonGroupBox class abstraction for the next class
Add QRadioGroupBox widget class
Add QCheckGroupBox widget class

Integration with deisgner
Add QCheckGroupBoxPlugin class
Add QRadioGroupBoxPlugin class
miss parameter name!
Probably it can be useful to pass 2 integers, the buttin index (row) and the button group id of the button ?
Same for all signals