API health check

[d-rita]

What does this PR do? This PR adds an endpoint /health/ to check if the following endpoints are working as expected, i.e. authentication, mapathon summary, mapathon detail, and raw data.

How to test:

• Run git fetch origin && git checkout feature/health-check to pull the branch.
• Connect to all data sources: underpass, insights, TM, raw data.
• To your config.txt, under the [API_MONITORING] header, add these:
  1. MAIN_API_URL=http://127.0.0.1:8000/v1
  2. ACCESS_TOKEN='' NB: The access token is generated using valid credentials of an OSM account. Follow these steps on how to generate a valid token to test authenticated routes in Galaxy.
• Start server: uvicorn API.main:app --reload
• Go to the health endpoint via docs to test the endpoint.
• The expected response, if all the endpoints are working as expected, is:

  {
      "authentication": "healthy",
      "mapathonSummary": "healthy",
      "mapathonDetail": "healthy",
      "rawData": "healthy"
   }

  Issues:

• Fixes #306