Placing a PDF with image() does not respect the mediaBox of the PDF.

[JakobFangmeier]

Placing a PDF in Drawbot does not respect the mediaBox.

Expected result, as replicated in Illustrator:

Actual result in Drawbot:

[typemytype]

RF currently doesnt take the mediaBox into account to position the pdf asset.

A PDFPage has support to retrieve bounds for each display box:
https://developer.apple.com/documentation/pdfkit/pdfpage/1504213-boundsforbox?language=objc

and the position has to be adjusted here:
https://github.com/typemytype/drawbot/blob/master/drawBot/context/pdfContext.py#L281-L285

this goes maybe together with this unsolved PR #304

[typemytype]

displayTrimBox.zip