add makefile

Makefile

+clean:
+	rm -rf build/* && rm -rf dist/* && rm -rf pdbeccdutils.egg-info && rm -rf htmlcov && rm .coverage
+
+test-report:
+	pytest --cov=pdbeccdutils --cov-report=html
+
+package:
+	pytest;\
+	python setup.py bdist_wheel;\
+	pip uninstall pdbeccdutils;\
+	pip install -e .;\
+	find dist -name "pdbeccdutils-*-py3*" -exec pip install {} \;
+
+make upload: 
+	twine upload dist/* --verbose
+
+make pypi: package upload clean