VGA to YPbPr - interlaced video does not work

[thesunnymachine]

Fixed Interlacing on Analog Out #258
#258

This didn't fix interlaced video output for me.
Here's a video showing the information signal from a retrotink 5x. https://www.youtube.com/watch?v=EzwVugwAXtU

You can see that the retrotink never sees an interlaced signal (as it does in other cores). It seems to be outputting a de interlaced signal, which MIGHT BE a good thing to keep as an option, as it looks pretty great on an LCD monitor, but for people who want to use a CRT or a retrotink to deinterlace we will want the option to output the original interlaced signal.