add recipe for installing required Python modules

Makefile

@@ -38,6 +38,9 @@ install-database-dev-env:
 	@echo "+-----------------------------------------------+"
 	@echo
 	
+install-python-env:
+	python -m pip install numpy scipy matplotlib cairocffi mysqlclient sqlalchemy wheel sphinx sphinx_rtd_theme astropy crcmod
+
 ccs-storage:
 	@echo "+----------------------------------------+"
 	@echo "| setting up the storage database schema |"