Add binding for QObject::findChildren

[EugeneZelenko]

Hi, Matthias!

It'll be great to add bindings for QObject::findChildren. See Patch.txt for my naive Qt 5 patch for QList<T> findChildren(const QString &name = QString()) const variant. According to Qt 4 and 6, bindings should be similar, but I had only Qt 5 to verify.

I'm not sure how hard would be findChildren(const QRegularExpression &re) const, but it could be skipped if it's non-trivial.

[klayoutmatthias]

This code is auto-generated, so patching the file will not survive the next generation run.

The right place was inside scripts/mkqtdecl5/mkqtdecl.conf and correspondingly for Qt4 and Qt6. But the code generation is kind of magic as I run it against a specific golden Qt API.

[EugeneZelenko]

Hi, Matthias!

See new patch for script changes. I read Qt 4 and 6 documentation and implementation there should be same.