3078 otp repository

[cakekoa]

What does this PR do?

Fixes part of #3078 by adding classes to support storing/retrieving OTPs.

PR Checklist

• Have you added an explanation of what your changes do and why you'd like to include them?
• Is the TravisCI build passing?
• Was the CHANGELOG.md updated to reflect the changes?
• Was the documentation framework updated to reflect the changes?
• Have you checked that you haven't introduced any duplicate code?

Testing Checklist

• Added relevant unit tests?
• Do all unit tests pass?
• Do all end-to-end tests pass?
• Any other testing performed?

  Tested by {Running the Monkey locally with relevant config/running Island/...}

• If applicable, add screenshots or log transcripts of the feature working

[codecov]

Codecov Report

Patch coverage has no change and project coverage change: +0.08 🎉

Comparison is base (36fc429) 72.67% compared to head (9df9fe8) 72.75%.

❗ Current head 9df9fe8 differs from pull request most recent head e1e6410. Consider uploading reports for the commit e1e6410 to get more accurate results

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #3186      +/-   ##
===========================================
+ Coverage    72.67%   72.75%   +0.08%     
===========================================
  Files          469      471       +2     
  Lines        13385    13425      +40     
===========================================
+ Hits          9728     9768      +40     
  Misses        3657     3657              

see 3 files with indirect coverage changes

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[mssalvatore]

Should we be using seconds from time.monotonic() for this? As written, changes to the system clock could cause the token to be valid for longer than desired.