Switch to uv - converters/honeydew

[MonkeyCanCode]

As per ML, we want to proceed with more standard layout for python project by using uv. Here are the changes made in this PR:

1. Added LICENSE and NOTICE (see above for reference)
2. Updated README.md with instructions around uv
3. Updated pyproject.toml with PEP 639
4. Added authors, readme, keywords, project.urls in pyproject.toml (unlike keywords in python/, this one has an extra entry for Honeydew)
5. Removed redundant classifiers in pyproject.toml as that is covered by requires-python
6. Added uv.lock
7. Removed pythonpath = ["src"] as that is default path
8. Converted project from single python script file into module (this doesn't follow the standard naming yet, I will raise another dev mailing list on this topic as there are two of this)
9. Updated test case to use module instead of loading single python script file into class path

Sample validation:

➜  honeydew git:(switch_to_uv_honeydew) uv sync
Resolved 8 packages in 3ms
Checked 7 packages in 0.59ms
➜  honeydew git:(switch_to_uv_honeydew) uv run pytest
========================================================================== test session starts ===========================================================================
platform darwin -- Python 3.13.0, pytest-9.1.1, pluggy-1.6.0
rootdir: /Users/yong/Desktop/GitHome/ossie/converters/honeydew
configfile: pyproject.toml
testpaths: tests
collected 128 items

tests/test_honeydew_osi_converter.py ............................................................................................................................. [ 97%]
...                                                                                                                                                                [100%]

============================================================================ warnings summary ============================================================================
tests/test_honeydew_osi_converter.py::test_empty_or_whitespace_metric_expression_skipped[expression0]
tests/test_honeydew_osi_converter.py::test_empty_or_whitespace_metric_expression_skipped[expression1]
  /Users/yong/Desktop/GitHome/ossie/converters/honeydew/src/honeydew_osi/converter.py:506: UserWarning: Metric 'bad_m': no entity reference found in expression; assigning to 'orders'
    warnings.warn(

-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
==================================================================== 128 passed, 2 warnings in 0.57s =====================================================================

[jbonofre]

Can you please remove the LICENSE and NOTICE file for now? The "root" ones are good enough.

Also, we could have group the uv switch in a single PR.