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/gi-docgen/gi-docgen.toml

@@ -0,0 +1,31 @@
+[build]
+type = "python"
+
+[dependencies]
+build = [
+    "git",
+    "python-setuptools",
+    "python-wheel",
+]
+runtime = [
+    "graphviz",
+    "python",
+    "python-jinja",
+    "python-magic",
+    "python-markdown",
+    "python-markupsafe",
+    "python-packaging",
+    "python-pygments",
+    "python-typogrify",
+]
+
+[package]
+description = "Documentation generator for GObject-based libraries"
+homepage = "https://gnome.pages.gitlab.gnome.org/gi-docgen/"
+license = "Apache-2.0 OR GPL-3.0-or-later"
+name = "gi-docgen"
+version = "2026.1"
+
+[[source]]
+extract_dir = "$name-$version"
+url = "https://gitlab.gnome.org/GNOME/gi-docgen.git#$version"