Support addition of revisions ("replies") to annotations with Qt5 bindings
The current Qt5 binding allows to retrieve the replies to a text/highlight annotation by using the revisions() method. However, there is no method to allow adding new revisions to an annotation.
A service could be provided to add either 1 annotation to the revision list, such as addRevision(const Annotation *), or a list of revisions addRevisions(const QVector<const Annotation *> &).