What this MR does / why does DuMux need it:
added the new option
mode:ignore in json file to deprecate some parameters in output.
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does the new code follow the style guide?
do the test pipelines pass? (see guide on how to run pipelines for a merge request)
is the code you changed and/or the new code you wrote covered in the test suite? (if not, extend the existing tests or write new ones)
does your change affect public interfaces or behavior, or, does it introduce a new feature? If so, document the change in
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\ No newline at end of filecomment in "Changes" of this MR.