Added Engine benchmarks visualization tool

[Akirathan]

In #5852, I added a tool that visualizes Engine benchmarks in a specified time period by downloading the benchmark results from GH and putting all those results in a static index.html, where each benchmark has its own interactive graph. An example:

It is a Python script that is straightforward to use, more info about the usage and dependencies in tools/performance/engine-benchmarks/README.md. The list of technologies is: Python3 (>= 3.7), pandas, jinja2, GH CLI utility