make RedFishConnection a class
make RedFishConnection a class

uggla/python-redfish,bcornec/python-redfish,uggla/python-redfish,vmisson/python-redfish,vmisson/python-redfish,devananda/python-redfish,uggla/python-redfish,bcornec/python-redfish,bcornec/python-redfish,devananda/python-redfish