add reviewers related fields to MergeRequestEvent webhook event

Author: mifitous

src/main/java/org/gitlab4j/api/webhook/EventMergeRequest.java

@@ -60,6 +60,7 @@ public class EventMergeRequest {
     private Integer timeEstimate;
     private Duration humanTimeEstimate;
     private List<Long> assigneeIds;
+    private List<Long> reviewerIds;
 
     public Long getAssigneeId() {
         return this.assigneeId;
@@ -437,6 +438,14 @@ public void setAssigneeIds(List<Long> assigneeIds) {
         this.assigneeIds = assigneeIds;
     }
 
+    public List<Long> getReviewerIds() {
+        return reviewerIds;
+    }
+
+    public void setReviewerIds(List<Long> reviewerIds) {
+        this.reviewerIds = reviewerIds;
+    }
+
     @Override
     public String toString() {
         return (JacksonJson.toJsonString(this));

src/main/java/org/gitlab4j/api/webhook/MergeRequestEvent.java

@@ -3,6 +3,7 @@
 import java.util.List;
 
 import org.gitlab4j.api.models.Assignee;
+import org.gitlab4j.api.models.Reviewer;
 import org.gitlab4j.api.models.User;
 import org.gitlab4j.api.utils.JacksonJson;
 
@@ -18,6 +19,7 @@ public class MergeRequestEvent extends AbstractEvent {
     private List<EventLabel> labels;
     private MergeRequestChanges changes;
     private List<Assignee> assignees;
+    private List<Reviewer> reviewers;
 
     public String getObjectKind() {
         return (OBJECT_KIND);
@@ -84,6 +86,14 @@ public void setAssignees(List<Assignee> assignees) {
         this.assignees = assignees;
     }
 
+    public List<Reviewer> getReviewers() {
+        return reviewers;
+    }
+
+    public void setReviewers(List<Reviewer> reviewers) {
+        this.reviewers = reviewers;
+    }
+
     public static class ObjectAttributes extends EventMergeRequest {
     }