Added _add_group_capability to ivi.DriverIdentity
Added _add_group_capability to ivi.DriverIdentity

Diti24/python-ivi,dracorpg/python-ivi,python-ivi/python-ivi,lude-ma/python-ivi,dracorpg/python-ivi,elopezga/ErrorRate,margguo/python-ivi,adrianschlatter/python-ivi,lude-ma/python-ivi,sephalon/python-ivi,alexforencich/python-ivi,getzze/python-ivi