Add format to makefile

Makefile

@@ -84,6 +84,11 @@ install: # Install setuptools, install this package in editable mode
 # Then, assuming the build passes, you can change it back (which will cause builds to 
 # start failing again until everything gets merged to main).
 
+format: setup.py pyproject.toml $(MAKE_SOURCES) # Run the code formatter and import sorter
+	black $(LOCATIONS)
+	isort $(LOCATIONS)
+	@echo "Ignore, Created by Makefile, `date`" > $@
+
 e2e-runslow: $(MAKE_SOURCES) # Run all (--runslow) end-to-end tests
 	export COVERAGE_FILE=./output/.coverage.e2e
 	pytest tests/e2e -vvv --runslow --cov --cov-report term --cov-report html:./output/htmlcov_e2e