Firmware 1.03, refined programming cycle

New firmware sets the trigger pin line low after pin is pulled to try and mitigate static resets. This is based on the observation that resets are less likely when the pin is out (and therefore the switch is connecting the line to ground).

Refined burnthis.bat changes the screen color to make it easier to see success or failure, keeps firmware hash in an airtable database, keeps airtable API key in local windows register for security, and is generally cleaned up.

NOTE: Because there are now subdirectories in the programming directory, this release is in a zip file.