potential new backend with aiocflib

[knmcguire]

Colmot from Skybrush has made their own crazyflie python library that uses asyncio instead of python threads. It will probably be faster in communication so we should at least try it out if it can be a potential new backend:

https://github.com/skybrush-io/aiocflib

[knmcguire]

We just need to be aware that interfacing this with ROS might not be trivial, but there are options like mentioned here: https://robotics.stackexchange.com/questions/24304/how-to-bridge-rclpy-with-pythons-asyncio