Karaoke: Remove mispasted line of code
Karaoke: Add Play/Pause and Stop buttons
Karaoke: Restrict lyric output to eight lines
Add a "Skip Track" function, and attempt #1 at making the slider work in seconds
Karaoke: Rework into two-pass approach and thus fix several issues.

* The progress bar is now reliable, never jumps backwards, always hits the end at the end
* Lyrics can now be found even if they're type 01 instead of 05 (untested)
* Lyrics are restricted to the width of the window