HPCC-11767 Add owner/state to event scheduler

Fixes HPCC-11767.

Add owner and state information to event scheduler.

Signed-off by: Miguel Vazquez <miguel.vazquez@lexisnexis.com>
Merge pull request #6119 from miguelvazq/HPCC-11767

HPCC-11767 Add owner/state to event scheduler

Reviewed-By: Gordon Smith <gordon.smith@lexisnexis.com>
Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>