[Development] Contribution: include separate libraries with inlines in the Qt installers

[Welbourne Edward]

Thiago said:
> And if it's that easy for you to create it, I think you should create
> that yourself in your project.

It might, all the same, be worth documenting the recipe for the benefit
of anyone else with similar needs, to save them having to work out the
details afresh.

    Eddy.