Adding additional logging configuration

🗣 Description

Add the configuration settings to have Python's logger module write to both console and a log file. Resolves Issue: https://github.com/cisagov/tpt-reports/issues/40

It is valuable to have TPT-Reports write to both a log file as well as console, to assist in tracing errors that may occur during usage by analysts.

Testing was performed by verifying that logging information was written to both console and tpt-reports.log in both info and debug modes.

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