Update the adapter for preCICE v3 and add test cases for Elmer-OpenFOAM coupling

[tapegoji]

Description

• Ported Elmer adapter from preCICE v2 to v3.
• Added comprehensive test cases for coupling Elmer with OpenFOAM.
• Ensured compatibility and improved integration with the latest preCICE version.

Changes:

• Updated adapter files to align with preCICE v3 API.
• Included new test cases for Elmer to OpenFOAM coupling. This change required hard-coded naming translation in the Coupler_Solver.F90 code.
• Enhanced documentation to reflect the changes and new usage instructions.

Testing:

• Successfully ran all new test cases to verify the adapter's functionality with preCICE v3 and OpenFOAM.
• Ensured backward compatibility and verified no breaking changes with existing setups.

Additional Notes:

• Please review the updated documentation and test cases.
• Looking forward to feedback and suggestions for further improvements.

[uekerman]

Thanks a lot already! As this change is a bit larger, please be patient with the review 😁

Two things already to simplify the review. Please

• Remove the precice-profiling folders
• Strip the tools to what you actually need

[tapegoji]

I have removed the precice-profiling and the extra files in the tools folder. Let me know if you need anything else. I am happy to help make this a great tool.
Regards,

[IshaanDesai]

This log file can be removed.

[IshaanDesai]

This README would be better suited on main folder level

[IshaanDesai]

@tapegoji thanks a lot for this contribution! Great work already 👏 Please have a look at my review comments. I did not run the test case and also did not have a look at the OpenFOAM things. After we do one iteration of the review, I can try running things. We can then finalize this pull request.