Added empty_repo field to Project class (#435).

src/main/java/org/gitlab4j/api/models/Project.java

@@ -84,6 +84,7 @@ public class Project {
     private ProjectStatistics statistics;
     private Boolean initializeWithReadme;
     private Boolean packagesEnabled;
+    private Boolean emptyRepo;
 
     public Integer getApprovalsBeforeMerge() {
         return approvalsBeforeMerge;
@@ -638,6 +639,14 @@ public class Project {
         this.statistics = statistics;
     }
 
+    public Boolean getEmptyRepo() {
+        return emptyRepo;
+    }
+
+    public void setEmptyRepo(Boolean emptyRepo) {
+        this.emptyRepo = emptyRepo;
+    }
+
     public static final boolean isValid(Project project) {
         return (project != null && project.getId() != null);
     }

src/test/resources/org/gitlab4j/api/project.json

@@ -44,6 +44,7 @@
       "notification_level": 3
     }
   },
+  "empty_repo": true,
   "archived": false,
   "avatar_url": "http://example.com/uploads/project/avatar/3/uploads/avatar.png",
   "shared_runners_enabled": true,