2- Create and implement Cybersixgill views

[aloftus23]

fixes #182

This PR should be merged after these updates are in develop:

• DNS Monitor changes Add DNS Monitor script and implementations #196
• Trending: PR 1 - Add Trending to report #192
• Credential and shodan views: PR 1 - Implement Shodan and Credential views into report generator #191
• Cybersixgill topCVEs checked against Shodan findings

🗣 Description

Creates views for all of the cybersixgill tables:

1. vw_darkweb_mentionsbydate
2. vw_darkweb_socmedia_mostactposts
3. vw_darkweb_mostactposts
4. vw_darkweb_assetalerts
5. vw_darkweb_execalerts
6. vw_darkweb_threatactors
7. vw_darkweb_potentialthreats
8. vw_darkweb_sites
9. vw_darkweb_inviteonlymarkets
10. vw_darkweb_topcves

💭 Motivation and context

These views make adhoc investigations more efficient and limits the amount of clean-up needed on the python side.

🧪 Testing

Passes all pre-commits and pytests

✅ Pre-approval checklist

• This PR has an informative and human-readable title.
• Changes are limited to a single goal - eschew scope creep!
• All future TODOs are captured in issues, which are referenced
  in code comments.
• All relevant type-of-change labels have been added.
• I have read the CONTRIBUTING document.
• These code changes follow cisagov code standards.
• All relevant repo and/or project documentation has been updated
  to reflect the changes in this PR.
• Tests have been added and/or modified to cover the changes in this PR.
• All new and existing tests pass.

[coveralls]

Coverage decreased (-1.05%) to 17.937% when pulling 0b88d9e on AL-cybersixgill-views into 78ccbfd on develop.

[lgtm-com]

This pull request introduces 3 alerts when merging 69b16b4 into c926100 - view on LGTM.com

new alerts:

• 2 for Wrong name for an argument in a class instantiation
• 1 for Wrong number of arguments in a call

[lgtm-com]

This pull request introduces 1 alert when merging 0b88d9e into 78ccbfd - view on LGTM.com

new alerts:

• 1 for Mismatch in multiple assignment