MQTT: WIP fix modified status not being set when adding and modifying topics or attributes.

Fix loading of CSV that was not applying model types, and that not checking conformance either.

SVGHMI
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Contents:

.. toctree::
   :maxdepth: 2

   intro
   syntax
   pages
   clones
   groups
   variables
   configuration
   i18n
   fonts
   hacking
   widgets
   library