Rename repo

[StefanKarpinski]

We are not calling this DyadBot. Please rename. My suggestion is calling this RobotDemo.

[StefanKarpinski]

On a call with @ViralBShah, he suggested BalanceBot. This isn't part of the Dyad product, it's a demo, so it should not contain Dyad.

[StefanKarpinski]

x-ref: JuliaComputing/DyadBotComponents.jl#4

[ViralBShah]

I think we should remove Dyad from the name - because this is not a part of our product. I think calling it BalanceBot works for me.