MQTT: WIP. Added handling of received messages (subscriptions)
Dropped perfect hash in favor of bisection
Also fixed indentation (tabs)
<?xml version='1.0' encoding='utf-8'?>
<BeremizRoot URI_location="ERPC://localhost:61131">
<TargetType/>
<Libraries Enable_Native_Library="true" Enable_Python_Library="false"/>
</BeremizRoot>