RPC: Improve 'getwitnessutxo' output
RPC: Improve 'getwitnessutxo' output

And add some code that allows using the command to test valid behaviour of GetWitnessFromSimplifiedUTXO() vs GetWitness()

nlgcoin/guldencoin-official,nlgcoin/guldencoin-official,nlgcoin/guldencoin-official,nlgcoin/guldencoin-official,nlgcoin/guldencoin-official,nlgcoin/guldencoin-official