Add Alias Column 'name' to system.events and system.metrics Tables

Why it matters

This feature improves usability by providing a more intuitive and consistent column name (name) when querying system event and metric data, making it easier for users to understand and write queries without confusion over column names.

How to use it

Users can reference the name column interchangeably with event in system.events and with metric in system.metrics tables in their queries, without any additional configuration.