feat: Add Makefile to invoke build.sh script and pytest

Author: elifarley

Makefile

@@ -0,0 +1,8 @@
+#!/usr/bin/env sh
+version=$(python -m setuptools_scm)
+# Check if the version is pure (i.e., it doesn't contain a '+')
+echo "$version" | grep -q "+" && {
+  echo "Error: Version '$version' is not pure. Aborting dist."
+  exit 1
+}
+exit 0