Add EmotiBit devices

[Andrey1994]

https://www.emotibit.com/

[mesca]

I will be happy to test and provide feedback.

[matthijscox]

Cool, seems there is code available here for reference or reuse: https://github.com/EmotiBit/ofxEmotiBit.

We just need a good c++ dev now (I should really improve my skills :p). Generally it is Andrey doing the work.

I recall Andrey mentioned that the output data format of the emotibit can be changed flexibly and that this may be the primary challenge for BrainFlow integration.

[mesca]

I think there is some work to be done on the firmware before that.