feat(board): Add Waveshare ESP32-S3-Matrix support

[Xylopyrographer]

Description:

Add support for the Waveshare ESP32-S3-Matrix board.

[kdpuvvadi]

This can be same for ESP32-S3-Zero?

[Xylopyrographer]

@kdpuvvadi Looks like it should. It has extra pins that won't be picked up by the Arduino "Dx", "Ax" notation.

[kdpuvvadi]

Can you point me to right direction or can you do a pr for the same

[Xylopyrographer]

@kdpuvvadi

Looks like support for the ESP32-S3-Zero is already in the Espresssif arduino-esp32 repository 👍.

So all you need to do is create the board support file and raise a PR to add that to the pioarduino repository.

Use the boards/ws_esp32_s3_matrix.json as a template and modify it for the Zero. You'll need to open the boards.txt file from the Espressif arduino-esp32 repository to ensure the names in the new .json file you create line up. Use the boards.txt entry for the ESP32-S3-Matrix as a reference to compare to the ws_esp32_s3_matrix.json file.

To test your .json file, copy it into the boards folder on your local machine. It should appear in the pio Board Explorer.