[FEATURE] - Add Identity collection to base CIPDriver

[ottowayi]

the LogixDriver automatically reads the identity object of the device on opening a connection, since this object is common to all CIP devices the base CIPDriver should do it (w/ LogixDriver adding custom info like the program name). Also, without this there is no builtin way to get the identity vis CIPDriver w/o manually building the generic_message yourself.