remove required constraints for some fields of job

Author: imcaizheng

src/services/JobProcessorService.js

@@ -40,13 +40,13 @@ processCreate.schema = {
     payload: Joi.object().keys({
       id: Joi.string().uuid().required(),
       projectId: Joi.number().integer().required(),
-      externalId: Joi.string().required(),
-      description: Joi.string().required(),
+      externalId: Joi.string(),
+      description: Joi.string(),
       title: Joi.title().required(),
-      startDate: Joi.date().required(),
-      endDate: Joi.date().required(),
+      startDate: Joi.date(),
+      endDate: Joi.date(),
       numPositions: Joi.number().integer().min(1).required(),
-      resourceType: Joi.string().required(),
+      resourceType: Joi.string(),
       rateType: Joi.rateType(),
       workload: Joi.workload(),
       skills: Joi.array().items(Joi.string().uuid()).required(),