[pdftex] redundant objects with includegraphics

[Otfried Cheong]

 > isn't that what pdfpages does?  i've never looked at its insides.

'pdfpages' is built on top of 'graphicx', so it suffers from the same
resource duplication.  Which is probably the reason why Andreas asked
about it in the first place :-)

Speaking about 'pdfpages', I suggest that while we are at it, we add a
primitive "\pdflastximagerotation" to return the value of the /Rotate
page attribute of an included PDF page.  It would allow 'pdfpages' to
rotate them back the way they are supposed to look.

Otfried