[ADF-3540] Start Task Cloud by cli - Core module changes (#4006)

* [ADF-3540] Added username and id to the usermodel

* [ADF-3540] Added tests

lib/core/userinfo/services/identity-user.service.spec.ts

@@ -54,6 +54,7 @@ describe('IdentityUserService', () => {
                 expect(user.firstName).toEqual('John');
                 expect(user.lastName).toEqual('Doe');
                 expect(user.email).toEqual('johnDoe@gmail.com');
+                expect(user.username).toEqual('johnDoe1');
                 done();
             });
     });