zeusminer: Identify the Chip # both in the UI and RPC API

![ZeusMiner Stats](http://www.nwoolls.com/othercontent/BFGMiner%20ZeusMiner%20Per-Core-Chips-IDd.png)
Let me know when that is fixed and merged and I'll re-base my changes on that. I should then be able to remove the above lines.