update params to update array of string

Author: Sprokof

src/main/java/com/amadeus/Params.java

@@ -3,6 +3,7 @@
 import java.io.UnsupportedEncodingException;
 import java.net.URLEncoder;
 import java.util.HashMap;
+import java.util.List;
 import java.util.Map;
 import java.util.logging.Level;
 import java.util.logging.Logger;
@@ -48,6 +49,11 @@ public static Params with(@NonNull String key, Object value) {
    * @return the Param object, allowing for convenient chaining
    */
   public Params and(@NonNull String key, Object value) {
+    if(value instanceof List){
+      @SuppressWarnings("unchecked") List<String> values = (List<String>) value;
+      put(key, String.join(",", values));
+      return this;
+    }
     put(key, String.valueOf(value));
     return this;
   }