HPCC-11539 Add Owner/State into ESP WUShowScheduled Response

Also add State as a filter of WUShowScheduled.

Signed-off-by: wangkx <kevin.wang@lexisnexis.com>
It did.. old code, always opened per valid event 'wuid', just as new code does.
Old code for reference [inside if (wuid.length()) ]:
```

                        try
                        {
                            SCMStringBuffer s;
                            Owned<IConstWorkUnit> cw = factory->openWorkUnit(wuid.str(), false);
                            if (cw)
                                scheduledWU->setJobName(cw->getJobName(s).str());
                        }
                        catch (IException *e)
                        {
                            e->Release();
                        }
```