[Feature request] Task relations

[Heiss]

How should relations be handled by obsidian?

Something like the following would be coolish.

- [ ] this is a task with dependency to an other task [vikunja_blocked_by:: 1] [vikunja_id:: 2]
- [ ] this is a task with dependency to other task [vikunja_id:: 1]

In vikunja, the back relations will be handled automatically. So the above example will be transform in a next trigger to:

- [ ] this is a task with dependency to an other task [vikunja_blocked_by:: 1] [vikunja_id:: 2]
- [ ] this is a task with dependency to other task [vikunja_blocking:: 2] [vikunja_id:: 1]

Of course, we could handle this in a single sync cycle, but maybe not necessary?

Any opinions?