pytest added for dev. Move all the test run python scripts into the "test-run" folder, so we can use the tests/ folder for just tests. Setup one test for the TimestampStrings class with pytests in tests/unit/string_handling/test_timestamp_strings.py
Missing: tests for all other functions
this is an intial test install. The folder and file names will differ and some things will move around. 1.0.0 will have the first usable setup