Database table for language trends over time

What does this MR do?

Database table for language trends over time.

• Introduce new DB table for tracking language trend over time.
• AR Model definition (without implementation)

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• [-] Documentation created/updated or follow-up review issue created
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• [-] Separation of EE specific content