Add helper script

scripts/tbx-helper.sh

@@ -0,0 +1,26 @@
+#!/bin/sh
+
+usage() {
+    echo "Usage: $0 COMMAND"
+    echo ""
+    echo "Available commands:"
+    echo "pull-images           Pull all known toolbox images"
+}
+
+pull_images() {
+    podman pull git.t-juice.club/torjus/toolboxes/vscode:latest
+}
+
+if [ $# != 1 ]; then
+    usage
+    exit 1
+fi
+
+case "$1" in
+    pull-images)
+        pull_images
+	;;
+    *)
+        usage
+        ;;
+esac