Add getnetworkhashps to btcctl.
Add getnetworkhashps to btcctl.

cqswxj2013/btcd,pkothbauer/btcd,btcsuite/btcd,ppcsuite/ppcd,ppcsuite/ppcd-old,toddfries/btcd,dajohi/btcd,dajohi/btcd,jrick/btcd,cjepson/btcd,Dirbaio/btcd,Dirbaio/btcd,ppcsuite/ppcd,davecgh/btcd,jrick/btcd,dajohi/btcd,mathiasrw/btcd,jrick/btcd,jcmincke/dcrd,glv2/ppcd,danoctavian/btcd,wallclockbuilder/btcd,DanielKrawisz/btcd,Cleawing/btcd,davecgh/btcd,tb00/btcd,Roasbeef/btcd,soapboxsys/ombfullnode,jongillham/btcd,sysbot/btcd,decred/dcrd,CryptocurrencyCabal/htcd,adiabat/btcd,stevenroose/btcd,dan-da/btcd,CryptocurrencyCabal/htcd,btcsuitereleases/btcd,Evil-Coin/Evil,1d4Nf6/btcd,wallclockbuilder/btcd,jrick/dcrd,btcsuite/btcd,jcmincke/dcrd,jrick/dcrd,runeaune/btcd,dan-da/btcd,tb00/btcd,adiabat/btcd,jimmysong/btcd,Dirbaio/btcd,stevenroose/btcd,FactomProject/btcd,jongillham/btcd,glv2/ppcd,Roasbeef/btcd,ppcsuite/ppcd-old,qchain/btcd,Stash-Crypto/btcd,btcsuitereleases/btcd,ltcsuite/ltcd,ltcsuite/ltcd,Stash-Crypto/btcd,runeaune/btcd,1d4Nf6/btcd,Cleawing/btcd,qchain/btcd,FactomProject/btcd,DanielKrawisz/btcd,BitGo/prova,Evil-Coin/Evil,BitGo/prova,sysbot/btcd,cjepson/btcd,danoctavian/btcd,jcmincke/dcrd,jimmysong/btcd,cqswxj2013/btcd,aakselrod/btcd,pkothbauer/btcd,aakselrod/btcd,soapboxsys/ombfullnode,hectorj/btcd,mathiasrw/btcd,toddfries/btcd,decred/dcrd,hectorj/btcd