Linuxforhealth-x12

The 0.54.0 release includes:

* Added top level linuxforhealth package
* Renamed cli to lfhx12
* Updated setup.cfg to support minimum versions

The 0.53.0 Release includes:

* 837 institutional claims implementation
* Update Field Constraints for base X12 segments (min/max values)
* Decorate multi-value “component” fields with `Field(is_component=True)` to support future refactor for granular domain models for composite fields.
* Added Loop Specific overrides for paperwork (PWK) segment

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* Improved 837 segment matching.
* Test cases for Example 1 and 2 from the 837 specification.
* Simplified parsing with context.patient_record and use of context.loop_container.
* 276/277 claim status transaction implementation.
* Removed existing transaction set convenience properties. Property implementations will continue in 77.
* Expanded “New Transaction” documentation.
* Added test cases for remaining sample transactions from the reference specifications (270, 271, 835).
* Updated GitHub CI actions to support validating/testing the X12 CLI.

- Expanded 837 test coverage with 15 additional sample transactions
- Migrated transaction tests from inline fixtures to data files
- Improved loop detection In claims parsing functions
- Updated base model config to throw a validation error if an “extra” value is included
- Migrated date time.time fields to strings to simplify processing

* 835 Health Care Claim Payment Implementation

* Corrected transactional identifiers within demo.837
* Added default values for the X12Config "settings" object which removes the need for a default ".env" file.