Add useful script to check if package is up to date with requirements

shell_scripts/useful/check_if_req_are_update.sh

@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+set -ex
+
+# Script for testing if our requirements are up-to-date
+rm -rf test_requirements/
+mkdir test_requirements/
+cd test_requirements/
+virtualenv venv
+. venv/bin/activate
+pip install ../ -i https://pypi.yelpcorp.com/simple
+pip freeze -l | grep -v '^styleguide==' > requirements.txt
+diff -u ../requirements.txt requirements.txt
+cd ../
+rm -rf test_requirements/
+
+echo -e '\033[42mSuccess!\033[0m'