Add CRMI curation coverage support and improve TES package generation

Description

Highlights

• Adds support for reading curation coverage data from workbook sheets and populating the crmi-curationCoverageLevel extension on Condition and Additional Context Groupers.

• Refactors grouper entry models into standalone classes for improved organization and maintainability.

• Improves matching and naming by normalizing whitespace in grouper titles and condition codes.

• Refactors common extension creation and other shared helper logic.

• Updates the generated manifest to:

  • include expansion parameters,
  • use draft versioning/status,
  • add the release label and expansion parameter extensions,
  • simplify related artifact generation.

• Enhances generated workbook output by producing separate sheets for Condition Groupers and Additional Context Groupers.

• Adds utility methods for date parsing, text normalization, and curation coverage resolution.

• Includes minor cleanup, typo fixes, and validation improvements throughout the generator.

• Github Issue:

• I've read the contribution guidelines

• Code compiles without errors

• Tests are created / updated

• Documentation is created / updated

By creating this PR you acknowledge that your contribution will be licensed under Apache 2.0