add "future" open channel to reservation
add "future" open channel to reservation

p2p logic will most likely spawn a grouting to do a blocking read on
this channel. When the channel is written to, that means the funding
transaction is now X blocks deep, and we’ll start to sign commitment
txns do updates etc.

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