Enable mqtt username/password authentication

Hello,

It seems Domoticz mqtt lib contains easy authentication adding. I have only added the parameters to the config area of the plugin.py and Domoticz picks them up as additional properties. I am now able to use username/password. (And if kept empty it will again of course only work as anonymous is allowed). So maybe you can/would like to add it to your code? Tia!

<plugin key="ems-gateway" name="EMS bus Wi-Fi Gateway DEV" version="0.7">
    <description>
      Plugin to interface with EMS bus equipped Bosch brands boilers together with the EMS-ESP firmware '<a href="https://github.com/proddy/EMS-ESP"> from Proddy</a>'<br/>
      <br/>
      <i>Please update the firmware of the Gateway to 1.9.4 or higher for proper functionality.</i><br/>
      As of firmware 1.9.2 the plugin supports 4 heating zones (HC1 to HC4). If you only have one thermostat/zone, the Gateway usually listens to zone 1.<br/>
      Automatically creates Domoticz devices for connected EMS devices.<br/> Do not forget to "Accept new Hardware Devices" on first run<br/>
    <br/>
    Parameters:<br/>
    <b>MQTT server and port</b><br/>
    MQTT Server address is usually, but not always, at the same address as the machine where Domoticz is running. So the 'local' machine at 127.0.0.1.<br/>
    The default port is 1883 and no user or password.<br/>
    <b>MQTT topic</b><br/>
    The default MQTT topic folder this plugin will look in is 'home/ems-esp/'.<br/>
    Make sure that this is set accordingly in the EMS-ESP firmware settings. In the latest versions the default topic is just ems-esp.<br/>
    You can change it here or in the Gateway web interface if its set differently.<br/>
    </description>
    <params>
        <param field="Address" label="MQTT Server address" width="300px" required="true" default="127.0.0.1"/>
        <param field="Port" label="Port" width="300px" required="true" default="1883"/>
        <param field="Username" label="Username" width="300px"/>
        <param field="Password" label="Password" width="300px" default="" password="true"/>
        <param field="Mode1" label="Topic base" width="300px" required="true" default="home/ems-esp/"/>
        <param field="Mode6" label="Debug" width="75px">
            <options>
                <option label="Extra verbose" value="Verbose+"/>
                <option label="Verbose" value="Verbose"/>
                <option label="True" value="Debug"/>
                <option label="False" value="Normal" default="true" />
            </options>
        </param>
    </params>
</plugin>

bbqkees / ems-esp-domoticz-plugin

Enable mqtt username/password authentication #6