Add support for diff coverage reporting #329
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This PR aims to adds an optional argument
diffCoverageFile
to the action which would be a detailed diff report of the modified files in a PR.The goal being to be able to set high threshold for modified files while only evaluating the changes made in the PR itself and not get punished for making changes in a large untested file. Some packages like https://github.com/Bachmann1234/diff_cover for python offer a more detailed list of line changed from the git diffs which would allow to make a better judgment on what changes are introduced.