installation: moved from `setup.py` to `pyproject.toml`: - following backend change, installation is now using `pyproject.toml`, and legacy `setup.py` as well as other legacy files have been deleted/updated. - [hatch](https://hatch.pypa.io) is now used as main building tool. However, thanks to the use of standards, other tools can be used too. - `VERSION` file has been deleted, in favor or using directly `__version__`, in `libervia/web/__init__.py`. Version can be updated directly from Hatch - update .hgignore - several dependencies version bump, with code update to adapt to changes.

include MANIFEST.in libervia/VERSION
global-include *.py
global-include *.ini
global-include *.po *.mo
global-include CHANGELOG COPYING* INSTALL README*
global-include *.sh
global-include Makefile *.rst *.bat
include src/browser/public/*
include themes
include doc
recursive-include src *.js
exclude *.sh
global-exclude *.un~
global-exclude *.pyc
prune output
prune html