This commit introduces two kinds of benchmarks:
1. Cryptographic Primitives. Measures the performance of all available
implementations of cryptographic algorithms using traditional
benchmarking. Uses criterion.
2. Protocol Runs. Measures the time each step in the protocol takes.
Measured using a tracing-based approach.
The benchmarks are run on CI and an interactive visual overview is
written to the gh-pages branch. If a benchmark takes more than twice the
time than the reference commit (for PR: the main branch), the action
fails.
