Automatic fretboards barré

When automatic fretboards are used, barré indicators are drawn whenever one finger is responsible for multiple strings.

If no finger indications are given in the chord from which the automatic fretboard is created, no barré indicators are included, because there is no way to identify where barrés should be placed.

\version "2.24"

\new FretBoards {
  <f,-1 c-3 f-4 a-2 c'-1 f'-1>1
  <f, c f a c' f'>1
}