Stomp-py

* Add host bind port patch (https://github.com/jasonrbriggs/stomp.py/issues/331)
* Tidy up based on pycharm suggestions
* Change quotes to be consistent (" rather than ')

* Remove traceback logging (https://github.com/jasonrbriggs/stomp.py/pull/290)
* Add support for \r\n EOL handling (as per [stomp protocol v1.2](http://stomp.github.io/stomp-specification-1.2.html#Augmented_BNF))
* Remove heartbeat loop sleep (issue https://github.com/jasonrbriggs/stomp.py/issues/297, https://github.com/jasonrbriggs/stomp.py/pull/298)
* Update version number using the makefile and the poetry version command
* Add `original_headers` access to the Frame so that you can get the original value of a header even if a listener modifies it (issue: https://github.com/jasonrbriggs/stomp.py/issues/300, PR https://github.com/jasonrbriggs/stomp.py/pull/309)
* Fix for reconnect failures (https://github.com/jasonrbriggs/stomp.py/pull/295)
* Fix for double disconnect notifications causing issues with reconnection
* Add 'verbose' to stomp.logging (and defaulting the value to False). Log lines which dump the stacktrace now use that variable - except for a couple of cases (set stomp.logging.verbose = True to change back to the previous behaviour)

* Update to not allow a null (None) listener when calling set_listener
* Change get_ssl call in connect to be consistent with transport method
* Add a sleep to the heartbeat loop
* Minor change to make quote-use more consistent (replace single with double in most places)
* Change build to use [Python Poetry](https://python-poetry.org/)
* Test coverage improvement
* Threading fix (is_alive) - https://github.com/jasonrbriggs/stomp.py/issues/286

* Fix logging simplification code (should not be logging to root appender - https://github.com/jasonrbriggs/stomp.py/issues/275)

* Fix for credentials exposure (https://github.com/jasonrbriggs/stomp.py/pull/244)
* Check for ``STOMP_SKIP_HOSTNAME_SCAN`` environment variable before extending ``LOCALHOST_NAMES``
* Remove python2 backwards compatibility
* Update dockerfile for better local testing
* Fix docker and travis setup, so there are consistent builds both locally and via CI
* Drop deprecated start/stop methods from connection (issue https://github.com/jasonrbriggs/stomp.py/issues/257)
* Fix for missing return in get_ssl (https://github.com/jasonrbriggs/stomp.py/pull/258)
* Clear heartbeat event after heartbeat loop ends (https://github.com/jasonrbriggs/stomp.py/pull/260)
* Update listener to move receive/message_received/heartbeat_received vars inside the 'with' blocks (https://github.com/jasonrbriggs/stomp.py/pull/252)
* Simplify logging calls
* Tidy up listeners (correct the behaviour of TestListener)
* Fix problem with double-disconnect notification (ihttps://github.com/jasonrbriggs/stomp.py/issues/245)
* Add facility for PrintingListener to write to log rather than print statements

* Infinite retry attempts (https://github.com/jasonrbriggs/stomp.py/pull/235)
* Terminate heartbeat thread on shutdown (https://github.com/jasonrbriggs/stomp.py/pull/234)
* Remove unused wait_on_receipt parameter (https://github.com/jasonrbriggs/stomp.py/pull/237)
* Reduce verbosity in logging to not include headers unless debug level is turned on (potential security issue as per: https://github.com/jasonrbriggs/stomp.py/issues/226)
* Fix for disconnect receipt usage in transport (https://github.com/jasonrbriggs/stomp.py/issues/212)
* Add __enter__/__exit__ to Connection so it can be used as a context (https://github.com/jasonrbriggs/stomp.py/issues/215)
* Additional ssl options (https://github.com/jasonrbriggs/stomp.py/pull/221/)