Major refactoring

Description

• Implement Season and Observatory components
• Implement MeteoDataHandler and its child classes:
  • GDASDataHandler
  • ECMWFDataHandler
  • CO2DataHandler
• Rename templates and resource files
• Refactor MolecularAtmosphereCalibrator class
  • Shift data handling functionality to their correspondent classes
  • Employ Observatory class
  • Add necessary changes to cover the migration of functionality to molecularprofiles
  • Some bug fixes
• Reduce the number of tools
  • Certain functionality is not a responsibility of calibpipe anymore
• Rename certain tools to uniformize the tool names
• Add example configurations in YAML
• Update unit and integration tests

The documentation is partially updated but needs another revision. This will be addressed in a separate MR.

Related Issue

Closes #78 (closed), #94 (closed), #98 (closed), #99 (closed), #100 (closed), #101 (closed)

How Has This Been Tested?

Automatically tested in CI

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.