Add Link Studio to the fast ring

Package Link Studio 1.0.2 with its AUR-only MediaPipe and sounddevice dependencies. Wire Link Studio to GitHub release checksums, keep all three packages on the fast ring, and make MediaPipe's Bazel bootstrap a checksummed makepkg source.

pkgbuilds/python-mediapipe/0004-use-opencv-headers.patch

@@ -0,0 +1,41 @@
+From 454702a3fa207ae5553627a60cfd36b36e2b344c Mon Sep 17 00:00:00 2001
+From: Butui Hu <hot123tea123@gmail.com>
+Date: Wed, 21 Feb 2024 10:56:46 +0800
+Subject: [PATCH 4/5] use external opencv headers
+
+Arch packages OpenCV 5 headers under /usr/include/opencv5 and renamed
+libopencv_calib3d/libopencv_features2d to libopencv_calib/libopencv_features.
+
+---
+ third_party/opencv_linux.BUILD | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/third_party/opencv_linux.BUILD b/third_party/opencv_linux.BUILD
+--- a/third_party/opencv_linux.BUILD
++++ b/third_party/opencv_linux.BUILD
+@@ -18,19 +18,19 @@
+         #"include/aarch64-linux-gnu/opencv4/opencv2/cvconfig.h",
+         #"include/arm-linux-gnueabihf/opencv4/opencv2/cvconfig.h",
+         #"include/x86_64-linux-gnu/opencv4/opencv2/cvconfig.h",
+-        #"include/opencv4/opencv2/**/*.h*",
++        "include/opencv5/opencv2/**/*.h*",
+     ]),
+     includes = [
+         # For OpenCV 4.x
+         #"include/aarch64-linux-gnu/opencv4/",
+         #"include/arm-linux-gnueabihf/opencv4/",
+         #"include/x86_64-linux-gnu/opencv4/",
+-        #"include/opencv4/",
++        "include/opencv5/",
+     ],
+     linkopts = [
+         "-l:libopencv_core.so",
+-        "-l:libopencv_calib3d.so",
+-        "-l:libopencv_features2d.so",
++        "-l:libopencv_calib.so",
++        "-l:libopencv_features.so",
+         "-l:libopencv_highgui.so",
+         "-l:libopencv_imgcodecs.so",
+         "-l:libopencv_imgproc.so",
+-- 
+2.43.2