Add mqtt documentation generator resource

[andreniggemann]

Summary

It's designed to automatically generate up to date documentation from the Topics connected to an MQTT Driver.

It has some known limitiations:
a) It has no localization support, but I think thats ok for an engineering focused tool.
b) It only supports MqttJsonTopics natively. It would be nice to find a way to support our other topic types or even user defined topic types

Linked Issues

Relevant logs and/or screenshots

Breaking Changes

Checklist for Submitter

• I have tested these changes locally
• I have updated documentation as needed
• I have added or updated tests as appropriate
• I have used clear and descriptive commit messages

Review

Typical tasks

• Merge request is well described
• Added Obsolete attributes if necessary
• Critical sections are documented in code
• Tests available or extended
• Documentation is created / updated
• Running in test environment
• Manual is created / updated
• Ports to other maintained versions are created

Clean code

• All unused references are removed
• Clean code rules are respected with passion (naming, ...)
• Avoid copy and pasted code snippets