Outline: option to move the file(s) to the Logseq dir

[andreoliwa]

Problem

As a user, I want to convert old Markdown files directly to the Logseq graph dir, so I don't need to move files or copy/paste manually.

Possible solution

1. This feature depends on Know the location of the current Logseq graph #15 being implemented first.
2. Add option --move (or something similar) to the outline command.
3. It can be used after the --in-place option (Outline: option to edit files in place #13): file is first edited, then moved to the Logseq dir.