[REQUEST] Sonoff Basic R2 DIY

[brentru]

Name of Board
Sonoff BASICR2 DIY Smart Switch

Board Architecture (i.e: SAMD51, ESP32-S2, ESP32, ...)
ESP8266

Hardware URL
https://sonoff.tech/product/diy-smart-switch/basicr2/

Pinout URL
A link to a pinout image, or the board's pin definitions

Additional context
Add any other context about the board request here.

[brentru]

This issue is marked for Hacktoberfest 2022. If you are participating in Hacktoberfest and want to take on this issue, please first fully read through the guide for adding a new board to Adafruit IO WipperSnapper.

First, make sure you have the required hardware.

Next, for this issue, you must add both the board definition and update WipperSnapper firmware to support this new board.

If you have any questions, comments, or concerns, please feel free to tag me in the comments here, or in your pull request for review.

Happy Hackin'!