[CHA-1427] Support Polls (#228)

* [CHA-1427] support campaigns

* fix format

* fix tests

* fix tests

* [CHA-1427] support polls

* fix use of user_id

* fix missing params

* fix test

* fix test

* fix test

* add channelType enable poll

---------

Co-authored-by: Rafael Marinho <rafael.marinho@getstream.io>

Author: rafaelmf3

src/main/java/io/getstream/chat/java/models/ChannelType.java

@@ -145,6 +145,10 @@ public class ChannelType {
   @JsonProperty("count_messages")
   private Boolean countMessages;
 
+  @Nullable
+  @JsonProperty("polls")
+  private Boolean polls;
+
   @Data
   @NoArgsConstructor
   public static class Threshold {
@@ -427,6 +431,10 @@ public static class ChannelTypeCreateRequestData {
     @JsonProperty("count_messages")
     private Boolean countMessages;
 
+    @Nullable
+    @JsonProperty("polls")
+    protected Boolean polls;
+
     public static class ChannelTypeCreateRequest extends StreamRequest<ChannelTypeCreateResponse> {
 
       private static final boolean DEFAULT_PUSH_NOTIFICATIONS = true;
@@ -579,6 +587,10 @@ public static class ChannelTypeUpdateRequestData {
     @JsonProperty("count_messages")
     private Boolean countMessages;
 
+    @Nullable
+    @JsonProperty("polls")
+    protected Boolean polls;
+
     public static class ChannelTypeUpdateRequest extends StreamRequest<ChannelTypeUpdateResponse> {
       @NotNull private String name;