Add new packages and build scripts for various libraries

- Introduced build scripts for gsettings-desktop-schemas, hypercorn, json-glib, libassuan, libbsd, libcloudproviders, libdaemon, libmd, libproxy, libsass, libseccomp, libxcomposite, libxdamage, libxtst, lmdb, python-aiofiles, python-blinker, python-flask, python-h11, python-h2, python-hpack, python-hyperframe, python-itsdangerous, python-more-itertools, python-priority, python-pyaml, python-quart, python-tappy, python-werkzeug, python-wsproto, sassc, snowball, talloc, xmltoman, and xorg-xprop.
- Added TOML configuration files for each package specifying build types, dependencies, and source URLs.
- Implemented custom build scripts for packages requiring specific build commands and configurations.
- Included patches for snowball to make libstemmer a shared library.

extra/python-flask/python-flask.toml

@@ -0,0 +1,33 @@
+[build]
+type = "python"
+
+[dependencies]
+build = [
+    "python-flit-core",
+    "python-wheel",
+]
+optional = [
+    "python-asgiref",
+    "python-cryptography",
+    "python-dotenv",
+]
+runtime = [
+    "python",
+    "python-blinker",
+    "python-click",
+    "python-itsdangerous",
+    "python-jinja",
+    "python-markupsafe",
+    "python-werkzeug",
+]
+
+[package]
+description = "Micro webdevelopment framework for Python"
+homepage = "https://flask.palletsprojects.com/"
+license = "BSD-3-Clause"
+name = "python-flask"
+version = "3.1.3"
+
+[[source]]
+extract_dir = "$name-$version"
+url = "https://github.com/pallets/flask.git#$version"