use local library source instead to correct some black-box issue for aliyuniot

lib/WifiManager/examples/Unique/cb/AnonymousCB.ino

@@ -0,0 +1,26 @@
+#include <WiFiManager.h> // https://github.com/tzapu/WiFiManager
+
+bool _enteredConfigMode = false;
+
+void setup(){
+	Serial.begin(115200);
+	WiFiManager wifiManager;
+
+	// wifiManager.setAPCallback([this](WiFiManager* wifiManager) {
+	wifiManager.setAPCallback([&](WiFiManager* wifiManager) {
+		Serial.printf("Entered config mode:ip=%s, ssid='%s'\n", 
+                        WiFi.softAPIP().toString().c_str(), 
+                        wifiManager->getConfigPortalSSID().c_str());
+		_enteredConfigMode = true;
+	});
+	wifiManager.resetSettings();
+	if (!wifiManager.autoConnect()) {
+		Serial.printf("*** Failed to connect and hit timeout\n");
+		ESP.restart();
+		delay(1000);
+	}
+}
+
+void loop(){
+
+}