Implement data loading proposal
Implement the proposal for a new auxiliary data handling design from https://forum.orekit.org/t/data-context-proposal/589
Goals:
- Updating data a new sets become available
- Running with different data sets in the same application
- Comparing results with different data sets
- Compatibility with 10.0
See the discussion thread for more detailed goals, design ideas, and general discussion. This bug is primarily to track implementation progress.
Don't forget to update documentation, and tutorials. :)