ModuleMetadata repo exclude redundant props

  - On find, Filter out default module properties like 'xd.stream.name' and 'xd.module.index'
  - those are readily available in the ModuleMetadata ID

Move ContainerArributes bean

- Move into ContainerServerApplication as it is relevant only to container
- was previously in ParentConfiguration

Handle empty module metadata
add toString to ContainerAttributes
XD-1521: Introduce constant for xd.stream.name and the like
Rename xd.stream.name to xd.job.name