esp_http_client: Add support to check the binary length of the recieved stream and compare it with the size mentioned in the header.

While downloading OTA firmware, if their is a Origin Respnse Timeout or the binary is only partially downloaded, OTA failure is observed. Checking binary size can also be helpful for simple http client applications.

Closes https://github.com/espressif/esp-idf/issues/3004

components/esp_http_client/include/esp_http_client.h

@@ -445,6 +445,17 @@ esp_err_t esp_http_client_set_redirection(esp_http_client_handle_t client);
  */
 void esp_http_client_add_auth(esp_http_client_handle_t client);
 
+/**
+ * @brief      Checks if entire data in the response has been read without any error.
+ *
+ * @param[in]  client   The esp_http_client handle
+ * 
+ * @return
+ *     - true
+ *     - false
+ */
+bool esp_http_client_is_complete_data_received(esp_http_client_handle_t client);
+
 #ifdef __cplusplus
 }
 #endif