* Add unified git diff parser.
* Add metadata and diff handling.
* Add test confidence/verification to bot output.
(cherry picked from commit 869449e288)
* Refactor sanity classes for use in all tests.
* Use lint/junit output for compile test.
* Add missing options for compile test.
* Fix early bailout on requirements install.
* Skip pep8 analysis when --explain is used.
* Fix return type annotations.
* Match line length requirement of PEP 8 config.
* Consider module_utils deps when running tests.