Missing, but important functionalities

[FSharpCSharp]

The API is very practical, but unfortunately there are still a few pitfalls that I would like to enumerate here:

Which would be desirable:

• Reading and writing Xliff documents directly in streams.
• Save Xliff documents to files other than the original one.
• Creation of completely new empty XlfDocuments and the corresponding files.
• Easier handling of notes assigned to a transit unit.

Perhaps it would be possible to add one or the other functionality so that everything can be completely re-created and handled more easily.