[Development] Qt PDF as a new TP module for Qt 5.14

[Shawn Rutledge]

> On 14 Aug 2019, at 16:41, Thiago Macieira <thiago.macieira at intel.com> wrote:
> 
> If it uses the already-compiled qtwebengine, then there may be a way.

I think the point of bundling qtpdf into the qtwebengine repository is that they will be built together, from the same sources.  I hope it also means that the same Pdfium shared object will be used by both, at runtime, but maybe somebody can confirm that?