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/at-spi2-core/at-spi2-core.toml

@@ -0,0 +1,44 @@
+[build]
+type = "meson"
+
+[build.flags]
+build_dir = "build"
+configure = [
+    "-Ddefault_bus=dbus-broker",
+    "-Ddocs=true",
+    "-Dgtk2_atk_adaptor=false",
+]
+skip_tests = true # container doesn't like it
+ 
+[dependencies]
+build = [
+    "gobject-introspection",
+    "libxml215",
+    "meson",
+    "python-sphinx",
+    "gi-docgen"
+]
+runtime = [
+    "sh",
+    "dbus",
+    "glib2",
+    "glibc",
+    "gsettings-desktop-schemas",
+    "libgcc",
+    "libx11",
+    "libxi",
+    "libxtst",
+    "xorg-xprop",
+]
+test = [ "at-spi2-core" ]
+
+[package]
+description = "Protocol definitions and daemon for D-Bus at-spi"
+homepage = "https://gitlab.gnome.org/GNOME/at-spi2-core"
+license = "LGPL-2.1-or-later"
+name = "at-spi2-core"
+version = "2.60.0"
+
+[[source]]
+extract_dir = "$name-$version"
+url = "https://gitlab.gnome.org/GNOME/at-spi2-core.git#$version"