Store a new field ('ExportDetails') with export details. This is a JSON field in DB that can store information about the export depending on the format provider used.
Changes:
- Updated models and created required migrations.
- Show field in StayExport list.
- Changed GuestDocument PK from `DocumentType`+`DocumentNumber` to to `ID`+`Version` for future versioning.
- Added DB field "IsLastVersion" to simplify queries where only last/current version is allowed.
- Updated GuestDocument DB fields type for `CreateTime` & `UpdateTime` to add precision.
- Updated usages of GuestDocument PK to new PK.
- Limit delete of a GuestDocument when it's currently used in a StayEntry.
Note: DB changes require recreating db tables, so all data is lost and migration "rollback" is not allowed.
Daniel-Garmig