Glasgow Embedded / Glasgow - History

revC1: move C87 up slightly, relocate CLKIF label

Just to keep it further away from U2.

revC1: update 5V capacitor footprint & datasheet

Mouser datasheet is wrong, lol.

revC1: rotate U15 90deg, swap D1/D2 pins

This simplifies the VBUS routing and avoids several layer crossings

revC1: add additional current-carrying vias to USB GND

revC1: change regulator EN pulldowns 100k -> 10k

Closes: #135

revC1: change Vio current limit resistors to 0.68 ohms

Issue: #135

revC1: add 100uF bulk decoupling to 5V rail

Issue: #135

revC1: fix LM3880MF EN divider for 4.1V brownout

This takes into account the internal current source, and also eliminates
one BOM resistor value.

applet.memory.floppy: change pinout to allow straightforward crimp.

This also adds support for both pins in DRVSA/B and MOTEA/B pairs.
Currently both DRVSx pins are enabled, which allows connecting
a single floppy no matter how it is keyed. This might be changed
in the future in the unlikely case that someone wants to connect
two floppy drives to one Glasgow.

REDWC is essentially omitted as we don't (directly) support either
5.25" drives (no reason other than me not having one) or any writes
at all (not implemented yet).