zeusminer: support added for ZeusMiner scrypt ASICs

--set zus:freq=XYZ (default 328)
--set zus:chips=X (default 6)
--set zus:cores=X (default 8)
--set zus:ignore_golden_nonce (don't check probe response - buggy HW/FW)
Right, my point is why bother sending and waiting for the response, when you're just going to ignore it? Why not just skip that and add_cgpu etc (when this flag is set)?