[#15] CodeClimate config and added baseline tests

[braxex]

Summary

Code Climate is a tool that provides automated code quality and maintainability metrics, as well as providing a venue for hosting test coverage results. Integrating with GitHub merge checks will allow us to enforce high levels of code quality before any new code is merged.

Addresses #15

Type of change

• [x] New feature (non-breaking change which adds functionality)
• [x] This is a documentation update

How To Test

n/a

Checklist:

• [x] My code follows the style guidelines of this project and has no linting errors
• [x] I have performed a self-review of my code
• [x] I have commented my code, particularly in hard-to-understand areas
• [x] I have made corresponding changes to the documentation, including any applicable ADRs
• [x] My changes generate no new warnings
• [x] I have added tests that fail without these changes
• [x] New and existing tests (unit, integration, accessibility) pass locally
• [x] Documentation updated
• ~If there are security concerns they are addressed or ticketed after being discussed~

[codeclimate[bot]]

Code Climate has analyzed commit 7ad40e03 and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 100.0% (90% is the threshold).

This pull request will bring the total coverage in the repository to 100.0% (56.3% change).

View more on Code Climate.