Verify & Document & Validate gateway blueprint

• STATUS

Some tips shared here until released at:

https://gitlab.eclipse.org/pcoval/oniro-presentations/-/wikis/blueprints#transparent-iot-gateway

STATUS

• build gateway image for linux:
  • !3 (merged)
• build gateway-node image for zephyr: zephyr-blueprint-gateway-node arduino-nano-33-ble
  • !4 (merged)
• build zephyr-openthread-rcp for nrf52840dk-nrf52840
• Tested flow
• Update documentation
  • https://docs.oniroproject.org/projects/blueprints/en/latest/transparent-gateway.html
• more
  • https://github.com/openembedded/meta-openembedded/pull/611

cc: @fldn, @zyga