Add createNamedParameter to QueryBuilder

[norkunas]

Closes #9878

Replaces #9883

Cherry picked tests from #9883

Fixed review suggestions

[stof]

I don't think createPositionalParameter makes sense, as the index of the positional parameter depends on its position in the final query, which means that this API will very easily get broken. You cannot use positional parameters without caring about all of them.
If you don't want to care about the exact names of your parameters, there is no need to make them positional instead of making them named as dcValue<increment>

[norkunas]

I don't think createPositionalParameter makes sense, as the index of the positional parameter depends on its position in the final query, which means that this API will very easily get broken. You cannot use positional parameters without caring about all of them.
If you don't want to care about the exact names of your parameters, there is no need to make them positional instead of making them named as dcValue<increment>

I care about only named parameters, so this one could be removed in my opinion

[greg0ire]

Sorry for originally suggesting adding it, I didn't see the flaw. Please remove it, and squash both commits together.

[norkunas]

PR ready again for review

[greg0ire]

Thanks @norkunas !