Rank and filter performance metrics with top() function

The Datadog's top() family of functions is designed to help users rank, filter, and visualize their performance metrics, allowing them to focus on the most important metrics at any given time. These functions support several ways of ranking time series against each other, such as highest peak values, largest sustained average values, or highest recent values. They also provide flexibility in terms of sorting order and can be used with shortcuts like topN, bottomN, etc. The top_offset function helps skip outliers and concentrate on the next few series for a more granular look into how metric values are distributed across processes.