esp_wifi: Add support for NAN Discovery and Datapath

Update wifi lib with below -
1. Create NAN Discovery SM for beaconing & cluster formation
2. Create NAN interface for Tx/Rx of beacons & action frames
3. Add commands & events for NAN Services Publish/Subscribe/Followup
4. Add NAN Datapath definitions, Events, Peer structures
5. Support for forming and parsing of Datapath related attributes
6. Modules for NDP Req, Resp, Confirm, Term, Peer management
7. NAN Interface related additions in Datapath, Data Tx Q's

In addition include below changes -
1. Add netif and driver support for NAN Interface
2. Add simple examples for Publisher-Subscriber usecases
3. Add an advanced console example that supports commands
   for NAN Discovery, Services & Datapath
4. Add wifi_apps for providing better NAN API's and Peer management

Co-authored-by: Shyamal Khachane <shyamal.khachane@espressif.com>

components/esp_wifi/include/esp_wifi_default.h

@@ -51,6 +51,14 @@ esp_err_t esp_wifi_set_default_wifi_sta_handlers(void);
  */
 esp_err_t esp_wifi_set_default_wifi_ap_handlers(void);
 
+/**
+ * @brief Sets default wifi event handlers for NAN interface
+ *
+ * @return
+ *  - ESP_OK on success, error returned from esp_event_handler_register if failed
+ */
+esp_err_t esp_wifi_set_default_wifi_nan_handlers(void);
+
 /**
  * @brief Clears default wifi event handlers for supplied network interface
  *
@@ -81,6 +89,16 @@ esp_netif_t* esp_netif_create_default_wifi_ap(void);
  */
 esp_netif_t* esp_netif_create_default_wifi_sta(void);
 
+/**
+ * @brief Creates default WIFI NAN. In case of any init error this API aborts.
+ *
+ * @note The API creates esp_netif object with default WiFi station config,
+ * attaches the netif to wifi and registers default wifi handlers.
+ *
+ * @return pointer to esp-netif instance
+ */
+esp_netif_t* esp_netif_create_default_wifi_nan(void);
+
 /**
  * @brief Destroys default WIFI netif created with esp_netif_create_default_wifi_...() API.
  *