feat(controller-status): libxce xcecli_ctrlstatus any-node read + decode + free (task 3.1)

src/include/xcectx.h

@@ -44,6 +44,7 @@ typedef struct {
             dataset_t*         get;
             uint64_t           jobid;
             xce_clusterconf_t* clusterconf;
+            xce_ctrlstatus_t*  ctrlstatus;
         } u;
     } reply;
 } xce_ctx_t;