XD-1089 Add shell command for job executions

* Add `job execution list` command
* Add `job execution display` command
* Add numerous Jackson MixIns + Deserializer to ensure deserialization of Batch objects
* Add tests
* Shell: Add Table#addRow() helper method (plus test)
* Add helper method CommonUtils#getUtcTime()

Jira: https://jira.springsource.org/browse/XD-1089