Pyadtpulse

* revert sync check logic to check against last check value. this should hopefully fix the problem of HA alarm status not updating
* use exponential backoff for gateway updates if offline instead of constant 90 seconds
* add jitter to relogin interval
* add quick_relogin/async_quick_relogin to do a quick relogin without requerying devices, exiting tasks
* add more alarm testing in example client

* change default poll interval to 2 seconds
* update pyproject.toml
* change source location to github/rlippmann from github/rsnodgrass
* fix gateway attributes not updating
* remove dependency on python_dateutils
* add timestamp to example-client logging

* pylint fixes
* set min relogin interval
* set max keepalive interval
* remove poll_interval from pyADTPulse constructor
* expose public methods in ADTPulseConnection object

* bug fixes
* relogin support
* device dataclasses

* async support
* background refresh
* bug fixes

* added ability to override the ADT API host (example: Canada endpoint portal-ca.adtpulse.com)