docs: update project version to 2.0.0}
* Update version in INSTALL.md
* Update version references in README.md
* Update version in package.json
* Update version in artifact documentation files
* Update version in all changelog files (2019, 2021, 2023, 2024)
* Update version in main change-log.md
* Update version in change-break.md
* Update version in todo.md