Per camera snooze

[austinc3030]

Description:

Related Issue: https://github.com/fronzbot/blinkpy/issues/955

This PR adds support for snoozing cameras.

Been running this for over a year with no issues snoozing cameras. While not "scientifically" tested, my script using this PR continues to arm/disarm, as well as take snapshots.

Could use some help with tox tests.

Related issue (if applicable): fixes #

Checklist:

• [ ] Local tests with tox run successfully PR cannot be meged unless tests pass
• [x] Changes tested locally to ensure platform still works as intended
• [x] Tests added to verify new code works

[austinc3030]

Sorry but I am working on another feature and needed to move my Camera Snooze commits to a new branch.

[fronzbot]

@austinc3030 sounds good. I didn't review the other PR because you had it marked as WIP so I assumed you were still working on it. I'll review this when I have some time (hopefully this week).