[1.3.6-prepare][Improvement][API] create project success return project id #4927 (#4932)

dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/ProjectService.java

@@ -88,6 +88,7 @@ public class ProjectService extends BaseService{
         project.setUpdateTime(now);
 
         if (projectMapper.insert(project) > 0) {
+            result.put(Constants.DATA_LIST, project.getId());
             putMsg(result, Status.SUCCESS);
         } else {
             putMsg(result, Status.CREATE_PROJECT_ERROR);