Make proxy dump print out meaningful information. (#1504)

* Make proxy dump print out meaningful information.

fixed: HPEXA-63

* printout raw data instead.

src/include/proxy.h

@@ -74,6 +74,9 @@ struct ncclProxyOp {
   uint8_t* sendbuff;
   uint8_t* recvbuff;
 
+  int nextRank;
+  int prevRank;
+
   union ncclProxyOpSpecifics specifics;
 
   struct ncclProxyOp *enqNext;
@@ -145,6 +148,11 @@ struct ncclProxyArgs {
   struct ncclProxyArgs** proxyAppendPtr;
 
   union ncclProxyOpSpecifics specifics;
+
+  int prevRank;
+  int nextRank;
+  int send;
+  int retry_total;
 };
 #define NCCL_MAX_NETDEVS 128