:hammer: add proxy.sh for dev

scripts/proxy.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+set -e
+
+if [ "$#" -ne 3 ]; then
+    echo "USAGE: $0 SSH_USER@SSH_HOST SSH_PORT APP_PORT"
+    exit 1
+fi
+
+ssh -p $2 -L $3:localhost:$3 $1