Add support for SeeedStudio's XIAO ESP32-S3 Wio-SX1262 Header

[Brandon-T]

Fixed: #8409

🤝 Attestations

• I have tested that my proposed changes behave as described.
• I have tested that my proposed changes do not cause any obvious regressions on the following devices:
  • Heltec (Lora32) V3
  • LilyGo T-Deck
  • LilyGo T-Beam
  • RAK WisBlock 4631
  • Seeed Studio T-1000E tracker card
  • Other (please specify below)

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[NomDeTom]

I would suggest removing the ASCII artwork. It's cute when the OEM does it. It's annoying if it's everywhere.

[NomDeTom]

This looks good, and it's good that you've tested it. Putting it in DIY as a separate variant is the right thing to do.

@fifieldt does this need to be private_hw or continue under the HWID for the xiao S3?