Add ability to ignore error on missing pass file to allow processing the
output further via another filters (mainly the default filter) without
updating the pass file itself.
It also contains the option to create the pass file, like the option
create=true does.
Finally, it also allows to issue a warning only, if the pass file is not
found.
(cherry picked from commit 350380ba8c)
Co-authored-by: Jan Baier <7996094+baierjan@users.noreply.github.com>
