Regenerate XML bulk schema files for release 4.0-a

The final release files for the bulk schemas are generated automatically. We have been hand-editing them to keep them in sync with data model changes, and need to now move to having them autogenerated.

• make sure MetaEd is up to data with the latest Model files.
• Run a MetaEd build.
• Replace the current interchange files with the generated copies: https://github.com/Ed-Fi-Alliance-OSS/Ed-Fi-Standard/tree/main/Schemas/Bulk