Add a script to reformat the project

scripts/reformat

@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+
+set -euox pipefail
+
+# Runs all formatting tools to ensure the project is up to date
+echo 'Reformatting Rust code'
+cargo fmt
+echo 'Reformatting Python code'
+poetry run isort test_runner
+poetry run flake8 test_runner
+poetry run black test_runner