Investigation framework and completed playbooks integration. Closes #173

[fgibertoni]

Description

Added support for investigation framework.

Related issues

Please add related issues.

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue).
• New feature (non-breaking change which adds functionality).
• Breaking change (fix or feature that would cause existing functionality to not work as expected).

Checklist

• The pull request is for the branch develop
• I have added tests in the Tests folder.
• The tests gave 0 errors.
• Black gave 0 errors.
• Flake gave 0 errors.
• I squashed the commits into a single one. (optional, they will be squashed anyway by the maintainer)

please follow these rules

• If your changes decrease the overall tests coverage (you will know after the Codecov CI job is done), you should add the required tests to fix the problem
• Everytime you make changes to the PR and you think the work is done, you should explicitly ask for a review

Real World Example

Please delete if the PR is for bug fixing.
Otherwise, please provide the resulting raw JSON of a finished analysis (and, if you like, a screenshot of the results). This is to allow the maintainers to understand how the analyzer works.

[fgibertoni]

I should now have covered all investigation endpoints.