Add DPP Enrollee example

1. Add Example for DPP Enrollee
2. Use DPP Supplicant API's to setup connection
3. Add support for multiple channels in Bootstrapping
4. Add Unity testcase for testing Offchannel operations

Closes https://github.com/espressif/esp-idf/issues/5654

examples/common_components/qrcode/include/qrcode.h

@@ -1,4 +1,4 @@
-// Copyright 2019 Espressif Systems (Shanghai) PTE LTD
+// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -95,9 +95,9 @@ bool esp_qrcode_get_module(esp_qrcode_handle_t qrcode, int x, int y);
 
 #define ESP_QRCODE_CONFIG_DEFAULT() (esp_qrcode_config_t) { \
     .display_func = esp_qrcode_print_console, \
-    .qrcode_ecc_level = ESP_QRCODE_ECC_LOW, \
     .max_qrcode_version = 10, \
-} \
+    .qrcode_ecc_level = ESP_QRCODE_ECC_LOW, \
+}
 
 #ifdef __cplusplus
 }