#171: Migrate Submission records separation

[leoraba]

Summary

This PR creates a SQL script to migrate legacy submission payloads into a normalized structure by creating one row record per submitted item.

Issues

This PR is part 1 of a series of PRs to complete issue # 171

Description of Changes

Package 'Data-model'

• Added 2 new Drizzle scripts
  • 0014_create_submission_records_table.sql DDL migration that creates the new submission_files and submission_records tables.
  • 0015_CUSTOM_migrate_submission_records.sql custom DML migration that moves existing data into the new schema.
• Updated docs:
  • schema.dbml
  • docs/README.md

Readiness Checklist

• Self Review
  • I have performed a self review of code
  • I have run the application locally and manually tested the feature
  • I have checked all updates to correct typos and misspellings
• Formatting
  • Code follows the project style guide
  • Autmated code formatters (ie. Prettier) have been run
• Local Testing
  • Successfully built all packages locally
  • Successfully ran all test suites, all unit and integration tests pass
• Updated Tests
  • Unit and integration tests have been added that describe the bug that was fixed or the features that were added
• Documentation
  • All new environment variables added to .env.schema file and documented in the README
  • All changes to server HTTP endpoints have open-api documentation
  • All new functions exported from their module have TSDoc comment documentation