Release 0.1.50

155 add source and test file diffs in database logging (#156)

* Adding comments to top level CoverAgent class.

* Refactored out init runs from UnitTestGenerator.

* Added source file to DB.

* Added language.

* Refactored out DRY RUN and updated HTML template for DB insertion.

* Updated report template.

* Added report generation with poetry.

* Refactored unit test calls.

* Adding test analysis and summary report.

* Updated doc and fixed test analysis logic.