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)
See the following:

https://github.com/luke-jr/bfgminer/blob/bfgminer/api.c#L3412
->
https://github.com/luke-jr/bfgminer/blob/bfgminer/api.c#L1608
->
https://github.com/luke-jr/bfgminer/blob/bfgminer/api.c#L1608
->
https://github.com/luke-jr/bfgminer/blob/bfgminer/api.c#L1598

Further, that's where the checks for cgpu->device == cgpu came from:

https://github.com/luke-jr/bfgminer/blob/bfgminer/api.c#L1598
https://github.com/luke-jr/bfgminer/blob/bfgminer/api.c#L2909

Is there a different check I can do to determine if get_api_extra_device_detail is per-proc or not?