T3S3 1276 Firmware Request

[fenixstarlord]

I attempted to define the hardware in platform io for the T3S3 using the 1276 modem, but I'm giving up as I don't have the time or conversely the skill (but I do have a very small baby that soaks up any time I could use to learn the skill).

If anyone would like to write the firmware for it I am more than happy to mail you a T3S3 1276 board.

[ripplebiz]

There is a PR with this that is being reviewed: #62