Add print quality to renderer

[deakjahn]

An extra argument to ˙render()˙.

[SergeShkurko]

@deakjahn hello

can you provide an example / description of what it can be used for?

[deakjahn]

Yes. To render a PDF for printing. It depends on the native PdfRenderer and the Pdfium code behind it, but the bitmap it creates is supposedly slightly different from the bitmap created for display. I never checked the source code, frankly, but I think the difference is in how it handles aliasing of the edges. Printing has different requirements than displaying.

[deakjahn]

I checked in the meantime. FOR_DISPLAY uses LCD display specific aliasing techniques. This is clearly unwanted when rendering for print.

[SergeShkurko]

@deakjahn thanks for your contribution!