XD-1327 Fix Rabbit source

- Removed outputType module option from RabbitSourceOptionsMetaData
as it is already set from ModuleTypeConversionPluginMetadataResolver's
OutputOptionsMetadata
XD-1303 Fix JobInstanceInfoResource

- Make JobInstanceInfoResource to have the collection of
JobExecutionInfoResource beans instead of JobExecutions
XD-1304: Add job instance display command