uncrustify-kf5: support custom config file in current dir; add command line...

uncrustify-kf5: support custom config file in current dir; add command line options --qt, --commit, --ignore-connects

Test Plan: verified with source code

Reviewers: ltoscano, dfaure

Reviewed By: dfaure

Differential Revision: https://phabricator.kde.org/D14323