cmd/lncli: add validation of address for connectpeer
cmd/lncli: add validation of address for connectpeer

LightningNetwork/lnd,AndrewSamokhvalov/lnd,ddustin/lnd,LightningNetwork/lnd,aakselrod/lnd,AndrewSamokhvalov/lnd,aakselrod/lnd,ddustin/lnd,bryanvu/lnd,bryanvu/lnd