Progress bar should also work with mplayer

[Hypfer]

Nothing much to say here. It's a feature request and not a bug :)

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[p-e-w]

Good idea. What is required here is a Termlet for mplayer.

If you'd like to have a go at making it yourself: https://github.com/p-e-w/finalterm/blob/master/data/Termlets/wget is what makes the progress bar in wget work.