Create Some Examples

examples/Login without refresh Token/login_without_rft.ino

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+#include <Arduino.h>
+#include <WiFi.h>
+#include "SpotifyESP32.h"
+#include "config.h"
+using namespace Spotify_types;
+
+void connect_to_wifi();
+
+
+Spotify sp(CLIENT_ID, CLIENT_SECRET);
+
+void setup() {
+    Serial.begin(115200);
+    connect_to_wifi();
+    
+    sp.begin();
+    while(!sp.is_auth()){
+        sp.handle_client();
+    }
+    Serial.println("Authenticated");
+}
+
+void loop() {
+    // put your main code here, to run repeatedly:
+}
+void connect_to_wifi(){
+    WiFi.begin(SSID, PASSWORD);
+    Serial.print("Connecting to WiFi...");
+    while (WiFi.status() != WL_CONNECTED) {
+        delay(1000);
+        Serial.print(".");
+    }
+    Serial.printf("\nConnected to WiFi\n");
+}