[TASK] Add more files in gitignore file

Whenever running the Functional Tests
directly from the Core, the framework requires
some additional folders that can be added
to the gitignore file.

More info about Functional Testing:
http://wiki.typo3.org/Functional_testing

Change-Id: If51851f32ebeda0eb6829dc3f16d87709904824a
Releases: 6.3, 6.2
Resolves: #59514
Reviewed-on: https://review.typo3.org/31147
Reviewed-by: Markus Klein
Tested-by: Markus Klein