Name, title, status and description for FML-sourced structuremaps

[costateixeira]

The current situation is that FML maps would not create a name or a description, which makes the publisher complain.

https://chat.fhir.org/#narrow/stream/196008-ig-publishing-requirements/topic/FML.20parsing

[costateixeira]

When an R4 FML file contains R5 metadata, the publisher doesn't parse the map at all. It should at least ignore that metadata since it's a comment; Ideally it would still parse the metadata

[lmckenzi]

Grahame will investigate how this might be done. One possibility is to add something like
/// fhirVersion = 4.0
to indicate that it's actually a 4.x FML, even though it has triple-slashes.