clean up and add web3

web3_python_toolkit/ Makefile

@@ -0,0 +1,20 @@
+.PHONY: clean install lint
+
+clean:
+	@find . -iname '*.py[co]' -delete
+	@find . -iname '__pycache__' -delete
+	@rm -rf  '.pytest_cache'
+	@rm -rf dist/
+	@rm -rf build/
+	@rm -rf *.egg-info
+	@rm -rf poetry.lock
+	@rm -rf .tox
+	@rm -rf venv/lib/python*/site-packages/*.egg
+	poetry cache clear
+	poetry env remove --all
+
+install:
+	poetry install
+
+lint:
+	tox -e lint