scripts : add Jinja tester PySide6 simple app (#15756)
* feat: add Jinja tester PySide6 simple app
* Linter fixes
* Pylint fixes
* Whitespace
* Add commandline support; add formatter; add extensions
* Remove testing actions
* Silence flake8 warnings for commandline mode
* Apply suggestions from code review
Co-authored-by: Sigbjørn Skjæret <sigbjorn.skjaeret@scala.com>
* Fix trailing whitespace/newline logic
* Update scripts/jinja/jinja-tester.py
Co-authored-by: Sigbjørn Skjæret <sigbjorn.skjaeret@scala.com>
* Update scripts/jinja/jinja-tester.py
Co-authored-by: Sigbjørn Skjæret <sigbjorn.skjaeret@scala.com>
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Co-authored-by: Sigbjørn Skjæret <sigbjorn.skjaeret@scala.com>
