Add many different patterns, and organize it.

Add a voltage discovery subsystem to allow the ch573 to detect if it's
on 12v or 5v lights.

It appears the frequency divider does not work. I've followed the data
sheet, but no matter what I set the frequency divider to it appears to
not work. It's possible maybe the GPIO is using an un-divided clock, but
I'm not sure.

Also the 32khz clock does not work I think. It might be an issue with
the board. The waveform is jagged and looks awful.

But I can switch from the HSE to the PLL.