2269 add attack technique tags

[cakekoa]

What does this PR do?

Fixes part of #2269.

Create attack technique tags to be used by the exploiters when publishing events. @ilija-lazoroski

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?
• Have you successfully tested your changes locally? Elaborate:

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

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

[mssalvatore]

All components that publish events should use these. The ones I know about are:
Mimikatz credential collector
SSH credential collector
Zerologon exploiter

[mssalvatore]

Approved, but fix vulture warnings.