0.1.7 refactoring

[Curts0]

• _refresh_handler() reworked to be more informative when running trace on refreshes
• README updated to show exploration through Tabular().Tables attribute
• Add rich python package as a dependency for future work
• Included from rich.logging import RichHandler into the logger for some fun
• Add Values() to PyColumn Class
• Removed E203 and F401 in .flake8 file for work on #39
• Fix bug with Last_X_Interval() in basic_checks