Implements a unity sample app which can be controlled using webbrowser client

[podborski]

This adds two examples:

1. Web client (using three.js) connects to a server and allows to manipulate the orientation and scaling of a cube 3D object.
2. Unity Sample app (WebSocket Server) which parses the data coming from the client and changes cube-object orientation and scaling.

Just an example hot to control simple unity app over websocktes using websocket-sharp on the srever side and a web browser on the client side.