Add "shake" virtual buttons about joycon-driver HOT 3 OPEN

Thanks for the idea, this would be great for games like super Mario Galaxy on dolphin, the hard part is defining a "shake", I might make a quick hack to make this happen sometime soon but I have some tests coming up and need to study

from joycon-driver.

I guess a shake is just a quick acceleration defined by a threshold, and throttled by a pause between each acceleration to prevent spamming. If we can configure the acceleration threshold and pause, it can work for every use case.

See this Stack Overflow anwser for a sample code (for Android accelerometer but I guess it's the same here) : https://stackoverflow.com/questions/5271448/how-to-detect-shake-event-with-android

from joycon-driver.

You can already configure dolphin to shake the WiiMote when you shake your joycon. On the "Motion Controlls and IR" tab I have set Y and Z to 'Slider 0+-' and 'Slider 1+-'. Works like a charm.

from joycon-driver.