Version 1.2.3

[heberlr]

This pull request introduces several important updates to documentation, licensing, database utilities, and parameter naming conventions. The main changes include switching the project license to BSD 3-Clause, updating documentation and metadata to reflect the new license and version, improving database utility imports, and standardizing parameter naming conventions for consistency.

Licensing and Documentation Updates:

• Added a BSD 3-Clause License file at uq_physicell/LICENSE.md and updated license references in pyproject.toml and the README badge to reflect the new license. [1] [2] [3]
• Updated the project version to 1.2.3 in uq_physicell/VERSION.py and all documentation references, including doc/index.md. [1] [2]
• Improved and clarified the release and documentation update instructions in pyproject.toml.

Database and Testing Improvements:

• Added a comprehensive test suite for the Model Analysis (MA) database in tests/test_ma_database.py, covering creation, insertion, and loading of all database components.
• Enhanced the uq_physicell/database/__init__.py to import submodules and utility functions for easier access and improved modularity.

Parameter Naming Consistency:

• Standardized parameter bound field names from Lower_Bound/Upper_Bound to lower_bound/upper_bound throughout the codebase, including in normalization utilities, test cases, and database loading logic for consistency and to avoid bugs. [1] [2] [3]

Workflow and CI:

• Updated the GitHub Actions workflow to only trigger unit tests on pull requests, not on every push, to streamline CI runs. (.github/workflows/test-examples.yml)