Add system.asynchronous_metric_log table for historical metrics logging

Why it matters

This feature enables users to analyze historical asynchronous metrics over time, solving the problem of only having current snapshot metrics available in system.asynchronous_metrics. It adds value by allowing trend analysis, troubleshooting, and performance monitoring using past metric data.

How to use it

Users can query the system.asynchronous_metric_log table directly with SELECT statements to retrieve historical asynchronous metrics logged by ClickHouse. No special configuration is required to enable it as it is a built-in system table.