test: add network test case for repeated multi-hop invoice payments
test: add network test case for repeated multi-hop invoice payments

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