Add alternate Joy-Con, alternate SFC30, Saitek P220 mappings

[AliceLR]

Here are some mappings found by @insidious611 and KKairos while testing gamecontroller integration for AliceLR/megazeux#157. Included are:

• Added alternate Joy-Con mappings for Windows (different version number).
• Added alternate Joy-Con mappings for Linux (bluetooth bus type instead of USB).
• Added alternate 8Bitdo SFC30 mapping for Windows (different VID and PID).
• Added Saitek P220 Windows mapping. This controller is a little weird; it has shoulder buttons and six face buttons but no start/back equivalents. Instead, it has a "throttle" axis controlled by two buttons that doesn't really map well to anything. We put start/back on the extra face buttons (the Sega recommendations don't really make sense here) and left the "throttle" unmapped.

[p-groarke]

Thx!