- Switch to source structure with src/package.
- Add configure.sh and Makefile for building the documentation and the sdist and wheel packages.
- Switch to mostly markdown, through myst-parser, for the sphinx documentation.
- Drop support for Python 3.8 (end of life).
- Increase minimal version of Numpy to >=1.22.
- Add executable scripts for running gui: datadigitizer.
Full Changelog: 1.2.2...1.3.0