Let GNOME Disks upstream know we intend to add VeraCrypt support

We have no control over time needed by upstream maintainers to review’n’merge our stuff so we cannot promise our sponsors it’ll be merged by the end of the contract. We will do our best to coordinate with them in advance regarding a) what we want to implement and how — so they have a chance to provide guidance before we waste our time — and b) when we ideally need them to be available to review our patches.

Parent Task: #11684 (closed)

Original created by @anonym on 12275 (Redmine)