Change log

Fixed crash in some environments. Thank you @ageurtse
Supports AutoConnect menu extention by user sketch with AutoConnectAux.
Supports loading and saving of user-defined parameters with JSON format.
Improved the WiFi connection sequence at the first WiFi.begin. Even if AutoConnectConfig::autoReconnect is disabled when SSID and PSK are not specified, it will use the information of the last established access point. The autoReconnect option will achieve trying the connect after a previous connection failed.
Supports the AutoConnectConfig::immediateStart option and immediately starts the portal without first trying WiFi.begin. You can start the captive portal at any time in combination with the AutoConnectConfig::autoRise option.
Improved boot uri after reset. AutoConnectConfig::bootUri can be specified either /_ac or HOME path as the uri to be accessed after invoking Reset from AutoConnect menu.
Improved source code placement of predefined macros. Defined common macros have been moved to AutoConnectDefs.h.
Supports AutoConnectConfig::hostName. It activates WiFi.hostname()/WiFi.setHostName().
Supports the captive portal time-out. It can be controlled by AutoConnectConfig::portalTimeout and AutoConnectConfig::retainPortal.

Improvement of RSSI detection for saved SSIDs.
Fixed disconnection SoftAP completely at the first connection phase of the AutoConnect::begin.

Supports ESP32.
Fixed that crash may occur if the number of stored credentials in the EEPROM is smaller than the number of found WiFi networks.

Automatically focus passphrase after selecting SSID with Configure New AP.
Supports AutoConnectConfig::autoReconnect option, it will scan the WLAN when it can not connect to the default SSID, apply the applicable credentials if it is saved, and try reconnecting.