Replacing generate with generatetoaddress

[RdeWilde]

Now that generate is deprecated, I would like to replace it with generatetoaddress but I am not sure how to get the address to pass along in the code below:

confidential-assets-demo/src/fred/main.go

Line 43 in bd23dc9

res, err = rpcClient.RequestAndUnmarshalResult(&hashs, "generate", 1)

How do I pass a valid address as extra argument to the call?

[AkioNak]

@RdeWilde Passing an address to generatetoaddress, just add the 4th param like follows:

addr, _ := rpcClient.GetNewAddr(false)
res, err = rpcClient.RequestAndUnmarshalResult(&hashs, "generatetoaddress", 1, addr) 

But, It seems some other codes should be fix to run with the latest version of elements.
I will try to make a PR to fix them.