Add script to prune _data directories with sudo

scripts/pruneDataDirectoriesWithSudo.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+# Get the path of the root of the project. It could be called from anywhere, so use this to get full paths.
+# Assumes that this script lives in a directory, which lives in the root.
+ROOTPATH="$( cd "$(dirname "$0")/.."; pwd -P )"
+
+find "$ROOTPATH" -name _data -type d -prune -exec sudo rm -rf {} \;