Create benchmarking tool to compare web servers.

[starphys]

For now we just want to measure requests per second and response time for our backend to compare the Express implementation to the Fastify implementation.

There are a lot of tools for this already, but we want a custom tool that simulates the mission control loop (POST a different commands object each time, regularly GET to update the status).

We only need to test /drive, but it would be great to be able to specify which endpoints and which server we're testing with on the fly (so bind it to a global variable or something).