Performance Testing for Python

[evinism]

Currently, the Python implementation of MistQL has no guarantees about performance, nor a standard, repeatable way to profile the tool. This ticket encompasses tooling choice, design, and implementation of everything we need in order to give a good story around Python performance.

The goal of this project is to create a repeatable performance test suite and establish baseline performance across a wide variety of tasks. Ideally, this would integrate with CI, allowing us to catch regressions on a pr-to-pr level.