feat: [CHA-1300] add count messages to channel type (#207)

Author: javierdfm

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

@@ -136,6 +136,10 @@ public class ChannelType {
   @JsonProperty("grants")
   private Map<String, List<String>> grants;
 
+  @Nullable
+  @JsonProperty("count_messages")
+  private Boolean countMessages;
+
   @Data
   @NoArgsConstructor
   public static class Threshold {
@@ -404,6 +408,10 @@ public static class ChannelTypeCreateRequestData {
     @JsonProperty("name")
     private String name;
 
+    @Nullable
+    @JsonProperty("count_messages")
+    private Boolean countMessages;
+
     public static class ChannelTypeCreateRequest extends StreamRequest<ChannelTypeCreateResponse> {
 
       private static final boolean DEFAULT_PUSH_NOTIFICATIONS = true;
@@ -544,6 +552,10 @@ public static class ChannelTypeUpdateRequestData {
     @JsonProperty("grants")
     protected Map<String, List<String>> grants;
 
+    @Nullable
+    @JsonProperty("count_messages")
+    private Boolean countMessages;
+
     public static class ChannelTypeUpdateRequest extends StreamRequest<ChannelTypeUpdateResponse> {
       @NotNull private String name;