Added pyproject.toml for upstream compatibility

pyproject.toml

@@ -0,0 +1,42 @@
+[project]
+name = "kasu"
+version = "4.230918"
+description = "Homepage CMS for Kasu.at"
+authors = [
+    { name = "Christian Berg", email = "xeniac@xendynastie.at" }
+]
+requires-python = ">=3.8"
+dependencies = ["beautifulsoup4",
+    "django < 5.0",
+    "django-appconf",
+    "django-ckeditor",
+    "django-contrib-comments",
+    "django-csp",
+    "django-compressor",
+    "django-extra-views",
+    "django-markdown",
+    "django-recaptcha",
+    "easy_thumbnails[svg]",
+    "icalendar",
+    "openpyxl",
+    "markdown",
+    "pillow",
+    "psycopg2-binary",
+    "PyJWT",
+    "pytz",
+    "requests",
+    "requests-oauthlib"
+]
+
+[project.optional-dependencies]
+dev = [
+    "django-debug-toolbar",
+    "django-rosetta",
+    "sqlparse",
+    "pylint>=2.0",
+    "pylint-django"
+]
+
+[tool.setuptools.packages.find]
+where = ["src"]
+