Entity metadata should reflect the native casing of fields

Is your feature request related to a problem? Please describe.

“I've spent few hours trying to figure out, why foreign keys ingestion is not working, and it appeared that I ingested columns in the original (upper) case and foreign key information was in lower case. As long as everything in the UI was in the lower case, that was not obvious at all” - Original Slack post

Describe the solution you'd like

The UI should reflect the native casing of fields