Support outgoing links

[mister-choo]

Coming from obsidian, there is a common workflow of linking [[Some-non-existent-note]] to:

• Expand on the topic later
• Enforce some connection between different topics
  So it would be nice to have some way to:

1. Have a list of all "unfinished" links
2. Complete on this list, even if the note itself doesn't exist yet
3. Create a note on going to definition, etc.
4. Don't throw error on "unfinished links"
5. Supply a different semantic token for unfinished links
   I think it is a very efficient workflow when writing notes.
   Will this functionality be possible or does this go against the project philosophy?