Create benchmarking infrastructure for Ares (#31)

* Create benchmarking infrastructure for Ares

This PR creates a benchmarking infrastructure for our program with a
github action that runs for pull requests. There is only 1 benchmark for
now, but I will add more later.

Co-authored-by: bee <bee@skerritt.blog>
Co-authored-by: swanandx <73115739+swanandx@users.noreply.github.com>

.gitignore

@@ -2,10 +2,6 @@
 # will have compiled files and executables
 /target/
 
-# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
-# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
-Cargo.lock
-
 # These are backup files generated by rustfmt
 **/*.rs.bk