GitHub Issue #688: Sample's Created By and Modified By fields do not resolve correctly when added to assay results grid if sample lookup is set to a specific sample type

[cnathe]

Rationale

#688 Sample's Created By and Modified By fields do not resolve correctly when added to assay results grid if sample lookup is set to a specific sample type

This PR is a backport of the fix for GitHub issue #688 where CreatedBy and ModifiedBy fields fail to resolve when navigating through a sample lookup field (in an assay results grid) that targets a specific sample type. The fix replaces a
custom createLookupTableInfo() implementation — which manually called createMaterialTable() + populate() + overlayMetadata() — with a simpler delegation to getTable(tableName, cf), which goes through the schema's full
table construction pipeline and correctly sets up all FK columns including CreatedBy/ModifiedBy.

Related Pull Requests

• GitHub Issue #688: Sample's Created By and Modified By fields do not resolve correctly when added to assay results grid if sample lookup is set to a specific sample type  #7564

Changes

• use schema getTable() for materialIdForeignKey instead of custom createLookupTableInfo()
• add test case to AssayTest