4.7:31232/T3 Gemstone O1 Linux based autopilot

[erkan-vatan]

T3 Gemstone O1 is a newly launched real-time Linux based development board that will be available for purchase soon.

This PR adds the board to the wiki under Linux Based Autopilots. I've also opened a corresponding PR in the main ArduPilot repository.

For more information about the board:

• Website: https://www.t3gemstone.org/en
• Board Specs: https://docs.t3gemstone.org/en/boards/o1/introduction
• Documentation: https://docs.t3gemstone.org/en/projects/ardupilot