Covid19 Api Versions Save

Changes

• Changed all the occurrences of CovidAPIv1 to CovidAPIv1Integrator (https://github.com/nat236919/covid19-api/commit/9a47227b977d250dbff2344251ced979f782fa3f)
• Updated Dockerfile to use its slim version for reducing project size (https://github.com/nat236919/covid19-api/commit/322e392b70b16c798f673e6d9cc9b831715601a2)
• Updated dependencies to patch security issues (#293)
• Migrated travis.org to travis.com (#294)

Changes

• Implement Models and Integrators separately
• Create aggregated get_data methods for Daily reports data
• Create aggregated get_data methods for Time series data
• Update tests

Changes

• Create Integrators and Models for APIv2
• Create Integrators and Models for APIv1 (partly supported)
• APIv2 data structure changes (please refer to the current structures here )
  • /confirmed
  • /deaths
  • /recovered
  • /active
  • /current/US
  • /timeseries/US

• Optimise search country by name or id functionality
• Refactor coding style
• Update documentation

• Reconstruct documentation
• Update uvicorn version for security purposes

• Optimise v2 model on getting country data
• Update the main file to the current version

• Update README.md
• Update git-page
• Exclude unused libraries

• Add API v1 and v2
• Ready for Docker deployment