Add skills to enable agents to use NVBench more effectively

[NaderAlAwar]

Summary

We want to add skills that enable agents to use NVBench more effectively. Each skill is meant to be self contained and explain how to accomplish a specific task

Intended outcome

This issue can be closed when we have a number of skills that make NVBench agent friendly

Tasks

Add skills for the following tasks:

• [Skill]: Write a correct NVBench benchmark for a CUDA kernel or library call #388
• [Skill]: Choose the right NVBench timing mode #389
• [Skill]: Report and interpret benchmark results #390