Renamed project from DPDTrack to Track4PX and updated all relevant files, including README, LICENSE, and pyproject.toml. Removed DPD specific code and implemented 4PX tracking API.
Rationale:
- Shifts the focus of the package from DPD to 4PX data.
- Streamlines tracking functionality for 4PX users.
Consequences:
- Users need to update their imports and installation process.
- Changes in package semantics and functionality.
