lnd: update the FundingManager to new revoke key funding workflow
lnd: update the FundingManager to new revoke key funding workflow

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