* Make pens wind unwound cassette tapes
* Slow the pen-winding of ruined tapes a bit.
Probably should be slower than screwdrivers (which have a toolspeed of 1). Pens are fiddly, confusing things, after all, and nobody actually knows how they work.
* Refactor tape-winding to avoid code duplication
Also fixes indents and hopefully hides a bit of idiocy on my part nobody look too close okay