chore: add comment formatting pre-commit hook script #1126
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Summary
This PR adds a new pre-commit hook that checks the grammar/formatting of Python comments.
Description of changes
The script attempts to correct comments so that they start with a capital letter and end with a full stop where applicable. This is achieved by examination of the space tokenised contents of each comment.
As implemented, the new hook checks any Python source files that were changed and reside within the
src/macaron
ortests
directories. All source files that could be changed by this script have been modified and included as part of this PR. Some files were manually edited to overcome script limitations, or to be excluded from checking entirely.Information on working with the script (including disabling it for certain files) has been added to the style guide.