Add option to force script looping for full duration (not just for fallback script)

[dastardlii]

Currently scriptplayer has an excellent option to loop short scripts to the full length of the video, however, this option only applies to the default script loaded when there is no script found for a video. Could we please have an option to loop ALL scripts, including the ones users load, and not just the fallback script?

That would allow users to keep a set of shorter, pattern-based scripts that they enjoy, and use them for longer scripts as they please.