Add session07 folder and circle.py and its test file.
Add Circle class that takes in radius and has area and diameter as properties.
Add repr and str to Circle class.
Add multiplication and addition special methods for Circle.
Add compare special method to Circle class.
Add extra credit classmethod for Circle class.
Add count_evens and its test file.
Fix wording in count_evens description.
Add testing function to test_count_evens.
Add series.py and its test file.
Add imports from series.py to test_series.py.
Add testing function for fibonacci number series.
Add testing funtion for lucas number series.
Add rot13.py and its test file.
Add testing function to test_rot13.py that  tests rot13.py.
Add html_render.py and its test file.
Add render comparison function and testing imports to html_render test.
Add expected result file from step 8 instructions.
Add step 8 instructions and unittesting comparison of expected and actual to determine test success.