change org_type.go to visible_type.go and fix the notes (#22752)
It seems `VisibleType` is only designed for org at first. But it is also
used by user's visibility now.
So I think `org_type.go` can be changed to `visible_type.go`.
Change all license headers to comply with REUSE specification.
Fix #16132
Co-authored-by: flynnnnnnnnnn <flynnnnnnnnnn@github>
Co-authored-by: John Olheiser <john.olheiser@gmail.com>