Extended main menu.

Example:

    Score manager - example scores

        1: Blue Example Score (2013)
        2: Étude Example Score (2013)
        3: Red Example Score (2013)

        scores - copy (cp)
        scores - new (new)
        scores - remove (rm)
        scores - rename (ren)

    > q

The (cp), (rm) and (ren) commands are new.

The (cp), (rm) and (ren) commands will be implemented in future commits.