Remove Phase class, organizational metadata blocks, and unused project fields. Update configuration
to use 'default_grants' and simplify PI usage to fallback corresponding author determination only.
BREAKING CHANGES: - Remove 'phase' and 'project' fields from configuration - Use 'default_grants'
instead of 'default_grant' - Generate only standard Dataverse citation metadata
Adds .coveragerc configuration file to control coverage analysis settings.
Expands test suite with additional unit tests for AbstractProcessor,
SubjectMapper, CitationBuilder, LicenseProcessor, PIFinder, and
MetadataProcessor classes.
Updates README with comprehensive testing documentation, including
information about current code coverage (53%) and instructions for
running tests with coverage analysis.
