MAT-1647: Set up CI/CD GitHub Action

[AndrewBird81]

https://jira.cms.gov/browse/MAT-1648

This PR sets up GitHub actions which mimic the Travis CI functionality, and automatically publish to NPM. It also added the Codacy badge to the README, and changed the default branch from master to main

Submitter:

• [x] This pull request describes why these changes were made.
• [x] Internal ticket for this PR:
• [x] Internal ticket links to this PR
• [x] Code diff has been done and been reviewed
• [x] Tests are included and test edge cases
• [x] Tests have been run locally and pass

Reviewer 1:

Name:

• [ ] Code is maintainable and reusable, reuses existing code and infrastructure where appropriate, and accomplishes the task’s purpose
• [ ] The tests appropriately test the new code, including edge cases
• [ ] You have tried to break the code

Reviewer 2:

Name:

• [ ] Code is maintainable and reusable, reuses existing code and infrastructure where appropriate, and accomplishes the task’s purpose
• [ ] The tests appropriately test the new code, including edge cases
• [ ] You have tried to break the code

[codecov[bot]]

Codecov Report

Merging #188 into bonnie-on-fhir will not change coverage. The diff coverage is n/a.

@@               Coverage Diff               @@
##           bonnie-on-fhir     #188   +/-   ##
===============================================
  Coverage           87.11%   87.11%           
===============================================
  Files                   6        6           
  Lines                 706      706           
  Branches              212      212           
===============================================
  Hits                  615      615           
  Misses                 91       91           

---

Continue to review full report at Codecov.

Legend - Click here to learn more Δ = absolute <relative> (impact), ø = not affected, ? = missing data Powered by Codecov. Last update fdc73b9...2c6d326. Read the comment docs.