Add new packages and build scripts for various libraries

- Added Nuklear GUI library with build script and configuration.
- Introduced OpenH264 encoder/decoder with build configuration.
- Added PortAudio library for audio I/O with custom build script.
- Included Python Execnet for multi-Python deployment.
- Added Pytest Xdist plugin for distributed testing.
- Introduced Shaderc for shader compilation tools.
- Added Snappy compression library with necessary patches and configuration.
- Included SoundTouch audio processing library with build configuration.
- Added SRT library for secure reliable transport.
- Introduced VapourSynth video processing framework with configuration.
- Added Vid.stab for video stabilization.
- Included WebRTC Audio Processing library with build configuration.
- Added X264 video encoding library with patches for POSIX compliance.
- Introduced X265 video encoder with build configuration.
- Added XKeyboard Config for X keyboard configuration files.
- Included Xorg XKBComp for keyboard description compilation.
- Added Xvidcore MPEG-4 video codec library with configuration.
- Introduced ZeroMQ messaging system with patches and build configuration.
- Added Zimg library for scaling and colorspace conversion.

extra/libsndfile/libsndfile.toml

@@ -7,7 +7,7 @@ configure = [
     "-DBUILD_SHARED_LIBS=ON",
     "-DCMAKE_POLICY_VERSION_MINIMUM=3.5",
     "-DENABLE_EXTERNAL_LIBS=ON",
-    "-DENABLE_MPEG=OFF",
+    "-DENABLE_MPEG=ON",
     "-Wno-dev",
     "-G Ninja",
 ]
@@ -19,6 +19,11 @@ build = [
     "ninja",
     "python",
     "sqlite",
+    "mpg123",
+    "lame",
+    "libogg",
+    "flac",
+    "libvorbis",
 ]
 optional = ["alsa-lib"]
 runtime = [