Update mock wiringpi script for macOS

fill/setup_mock_wiringpi.sh

@@ -1,5 +1,21 @@
 #!/bin/bash
+# Move the mock_wiringpi library to the standard linking path on your system
+
+if [[ "$OSTYPE" == "darwin"* ]]; then
+    # macOS
+    LIBRARY_PATH="/usr/local/lib"
+    LIBRARY_NAME="libwiringPi.dylib"
+else
+    # Assume Linux otherwise
+    LIBRARY_PATH="/usr/lib"
+    LIBRARY_NAME="libwiringPi.so"
+fi
+
 BINPATH=$(bazel cquery --output=files //fill/lib/MockWiringPi:mock_wiringpi $1)
-sudo rm /usr/lib/libwiringPi.so
-sudo cp $BINPATH /usr/lib/libwiringPi.so
-export LD_LIBRARY_PATH=/usr/lib
+
+sudo rm -f "$LIBRARY_PATH/$LIBRARY_NAME"
+sudo cp "$BINPATH" "$LIBRARY_PATH/$LIBRARY_NAME"
+
+export LD_LIBRARY_PATH="$LIBRARY_PATH"
+
+echo "Library updated and set at $LIBRARY_PATH/$LIBRARY_NAME"