added new arg for host regex, fix warnings, and errors

[nickforsythbarr]

Stale Sensors.py new feature, bug fixes

This pull request covers a couple of changes to to the stale_sensors.py.

I added functionality to support a new arg ("-p", "--host-pattern") which optionally accepts a string to filter the hosts by.

• [ * ] Enhancement
• [ * ] Bug fixes

Added features and functionality

• added a new arg ("-p", "--host-pattern") to accept a regex argument to filter on hostname.

Issues resolved

• fixed the calc_stale_date function that was complaining about deprecation.
• changed the way the script calls the hide_hosts function to avoid the max simultaneous hosts API error.

[jshcodes]

Unit testing failures are as expected. Testing locally. Linting issues will be resolved as part of the upcoming 1.4.4 code alignment and release. (Caused by updates in pylint.)

[jshcodes]

Thank you for your contribution! 🙇 🚀