Need a way to setBroadcast from clients

[RajeshSivanesan]

We may need to expose a function in SSDP prototype where clients can set broadcast property to true/false.

I saw a @ReactMethod exposed from the UdpSockets native module, which we can make use of.

[jsdario]

Have no time to actually implement more features – this is PR candidate, if you are developing on it please open one when its available :)