[API] Added status field on Location ValueObject

Note: This does not implement the functionality in Public API services,
 it just provides the API's that will be filled out by the services in
 the future. For now it will only be used by preview functionality.

(cherry picked from commit 6e79bd774bedab860be089ebba6ab3f55f75f011)
Fix EZP-22823: Change PreviewHelper to return draft location
Merge pull request #846 from ezsystems/location_draft_status

[API] Added status field on Location ValueObject