Add word-by-word comparison with tolerance and threshold to file diff. #2031
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Proposed Changes
The current file comparison that is used for regression tests, does not feature a possibility to specify a tolerance or a threshold. This PR implements such a feature and does not affect the existing regression tests.
Related Work
Currently, there are no regression tests that make use of this feature and the PR does not include a new test that would use it. However, the feature_new_flamelet branch already uses this feature. This branch here is to split off the feature as it is not related to flamelet models but it is a general feature that can used for a variety of regression tests that use a file comparison.
PR Checklist