peer: introduce chanMsgStream to provide a concurrent safe, in-order stream of msgs
peer: introduce chanMsgStream to provide a concurrent safe, in-order stream of msgs

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