Moved status code API from REST engine to main coap implementation.

examples/er-rest-example/coap-client-example.c

@@ -100,6 +100,7 @@ void
 client_chunk_handler(void *response)
 {
   uint8_t *chunk;
+
   int len = coap_get_payload(response, &chunk);
   printf("|%.*s", len, (char *)chunk);
 }