GeezerVison

Replaced some CPL resistors. Partial fix for #83
Added bridges for VGA I2C if ESD chip not fitted. Closes #51

Also revised the Neotron Pico symbol to put all the GPIO on one side
and all the GND at the bottom.

Closes: #61

The Holtek was a SOT-89 that had a completely different pinout to
every other SOT-89 3.3V LDO out there. To avoid confusion I
wanted to replace it, but the only other basic JLCPCB parts
were the AMS1117 (huge quiescent current) and something only
rated to 7V input voltage (this LDO gets the full VDC in).

So, I used a TO-92 footprint and picked an LP2950N.

This, however, needs some ESR on the output cap, so I made
that a 2.2uF electrolytic.

I also removed the 2x 10uF output caps on the K7805 and set
just one 22uF as specified in the datasheet.