Added the field text_entities to the class PollOption

library/src/main/java/com/pengrad/telegrambot/model/PollOption.java

@@ -11,6 +11,7 @@ public class PollOption implements Serializable {
 
     private String text;
     private Integer voter_count;
+    private MessageEntity[] text_entities;
 
     public String text() {
         return text;
@@ -20,13 +21,19 @@ public Integer voterCount() {
         return voter_count;
     }
 
+    public MessageEntity[] textEntities() {
+        return text_entities;
+    }
+
     @Override
     public boolean equals(Object o) {
         if (this == o) return true;
         if (o == null || getClass() != o.getClass()) return false;
 
         PollOption that = (PollOption) o;
 
+        if (!Arrays.equals(text_entities, that.text_entities)) return false;
+
         if (text != null ? !text.equals(that.text) : that.text != null) return false;
         return voter_count != null ? voter_count.equals(that.voter_count) : that.voter_count == null;
     }
@@ -43,6 +50,7 @@ public String toString() {
         return "PollOption{" +
                 "text='" + text + '\'' +
                 ", voter_count=" + voter_count +
+                ", text_entities=" + Arrays.toString(text_entities) +
                 '}';
     }
 }