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.

--- a/libervia/web/__init__.py	Wed Jun 07 09:35:36 2023 +0200
+++ b/libervia/web/__init__.py	Wed Jun 07 15:28:10 2023 +0200
@@ -1,5 +1,1 @@
-import os.path
-
-version_file = os.path.join(os.path.dirname(__file__), "VERSION")
-with open(version_file) as f:
-    __version__ = f.read().strip()
+__version__ = "0.9.0.dev0"