Add documentation for Leten Dinosaur (?)

[qdot]

Need to reverse engineer hardware and document protocol.

Actual name unknown because all box text is Chinese.

Toy purchase URL: https://www.aliexpress.com/item/Leten-APP-Remote-Control-USB-Charge-Wireless-Anal-Clitoris-Vagina-G-spot-Vibrating-Egg-Kegel-Ball/32829532705.html

Known owners:

• @qdot