Add missing includes

What this MR does / why does DuMux need it: Adds missing headers related to MR

Notes for the reviewer

Before you request a review from someone, make sure to revise the following points:

• 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 CHANGELOG.md.
• is the list of the header includes complete? ("include what you use")
• all files have to end with a \n character. Make sure there is no \ No newline at end of file comment in "Changes" of this MR.

changed milestone to %3.7

requested review from @timok

assigned to @houkili

changed the description

added Bug Fix label

changed title from Add headers to satisfy headercheck to Add missing includes

enabled an automatic merge when the pipeline for f2b3613d succeeds

approved this merge request

changed the description

mentioned in commit afb7f229

merged