Add forgotten hush-tx script for completeness

src/hush-tx

@@ -0,0 +1,10 @@
+#!/bin/bash
+# Copyright (c) 2019 Hush developers
+
+# set working directory to the location of this script
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+cd $DIR
+
+NAME=HUSHT
+
+./komodo-tx -ac_name=$NAME "$@"