Only add the model elements tags to the elements in the generated C4Plantuml files about export HOT 1 CLOSED

The big problem here is that C4-PlantUML has its own way of using tags and styling elements, and that doesn't match what Structurizr does. Also the old C4PlantUMLExporter didn't work in a number of situations, specifically with regard to the automatically generated legend. So I took the decision to make it match the Structurizr approach to tags/styling as far as possible in this commit -> 70fa947

If you preferred the old (and somewhat unpredictable approach), my recommendation would be to fork the repo before the above commit, and build your own version of the C4PlantUMLExporter (the CLI provides a way to specify the export format via a fully qualified classname).

from export.