Message representation (jacobschaer#7)

* Added forgotten test case for reconnection on graceful shutdown.
* Added parent class for all message types implementing repr/str/eq
* Fixed possible issue with VIN being either str or bytes

Improved Connector Close Behavior and Auto TCP Reset (jacobschaer#5)

* Update udsoncan adapter to not close the transport by default (that functionality can be re-enabled with a kwarg in the constructor)
* Add kwarg to DoIPClient allowing reconnect/reactivate if the TCP socket breaks
* Cleaned up a few typos in documentation

Update automotive_ethernet.rst

Doc changes that got lost in merge.

Update setup.py

Blackening

Update setup.py