Merge pull request #2327 from ottosuess/invoice_macaroon_permissions

lnrpc: allow invoice.macaroon to read onchain transactions

rpcserver.go

@@ -173,6 +173,10 @@ var (
 			Entity: "address",
 			Action: "write",
 		},
+		{
+			Entity: "onchain",
+			Action: "read",
+		},
 	}
 )