Bootstrap python tests (#697)

* move current integration tests to the integration folder

* move pyscript.py into its own python folder

* change the path for python unit testing files

* change pyscript.py path

* Update Makefile

* remove echo

* replace conda run with pytest directly

* oops, add python test files I embarrassingly forgot to add

Co-authored-by: Peter W <34256109+pww217@users.noreply.github.com>

pyscriptjs/tests/py-unit/conftest.py

@@ -0,0 +1,8 @@
+"""All data required for testing examples"""
+import pathlib
+import sys
+
+# current working directory
+base_path = pathlib.Path().absolute()
+python_source = base_path / "src" / "python"
+sys.path.append(str(python_source))