This is a request to provide support for specifying a comment/hint in package.nls.json, for translators

We'd like to start using the markdownDescription field for some of our extension settings. We'd like to be able to provide a comment/hint to translators that these strings (in package.nls.json) contain markdown, so translators are aware of it and avoid removing or corrupting the markdown syntax.

I don't see any comment/hint field handled for package.nls.json, in the implementation of createXlfFiles(). I see that it supports specifying an object with a message field instead of a string field. But, I don't see anywhere that it also handles a comment/hint field in that object.