Major Releases v1.4.0

### Major Releases v1.4.0

1. Fix staticIP not saved in examples. See [ESP32 static IP not saved after restarting the device](#19)
2. Add structures and functions to handle AP and STA IPs.
3. Add complex examples 
  * [Async_ConfigOnDRD_FS_MQTT_Ptr_Complex](examples/Async_ConfigOnDRD_FS_MQTT_Ptr_Complex) to demo usage of std::map
  * [Async_ConfigOnDRD_FS_MQTT_Ptr_Medium](examples/Async_ConfigOnDRD_FS_MQTT_Ptr_Medium).
4. Add simple minimal examples 
  * [Async_ConfigOnDRD_ESP32_minimal](examples/Async_ConfigOnDRD_ESP32_minimal)
  * [Async_ConfigOnDRD_ESP8266_minimal](examples/Async_ConfigOnDRD_ESP8266_minimal)
  * [Async_AutoConnect_ESP32_minimal](examples/Async_AutoConnect_ESP32_minimal)
  * [Async_AutoConnect_ESP8266_minimal](examples/Async_AutoConnect_ESP8266_minimal)
5. Modify Version String
6. Add Table of Contents

Author: khoih-prog

README.md

@@ -110,8 +110,10 @@
     * [Async_ConfigOnDRD_FS_MQTT_Ptr_Complex](examples/Async_ConfigOnDRD_FS_MQTT_Ptr_Complex)
     * [Async_ConfigOnDRD_FS_MQTT_Ptr_Medium](examples/Async_ConfigOnDRD_FS_MQTT_Ptr_Medium)
   * [Simplest Possible](#simplest-possible)
-    * [Async_ConfigOnDRD_FS_MQTT_Ptr_Complex](examples/Async_ConfigOnDRD_FS_MQTT_Ptr_Complex)
-    * [Async_ConfigOnDRD_FS_MQTT_Ptr_Medium](examples/Async_ConfigOnDRD_FS_MQTT_Ptr_Medium)
+    * [Async_AutoConnect_ESP32_minimal](examples/Async_AutoConnect_ESP32_minimal)
+    * [Async_AutoConnect_ESP8266_minimal](examples/Async_AutoConnect_ESP8266_minimal)
+    * [Async_ConfigOnDRD_ESP32_minimal](examples/Async_ConfigOnDRD_ESP32_minimal) 
+    * [Async_ConfigOnDRD_ESP8266_minimal](examples/Async_ConfigOnDRD_ESP8266_minimal)
 * [Example Async_ConfigOnDRD_FS_MQTT_Ptr](#example-async_configondrd_fs_mqtt_ptr)
 * [Debug Terminal Output Samples](#debug-termimal-output-samples)
   * [1. Async_ConfigOnDRD_FS_MQTT_Ptr on ESP32_DEV](#1-async_configondrd_fs_mqtt_ptr_medium-on-esp32_dev)