The marker does not follow the normal rules of inheritance that clones or groups do. This is a departure from what PDF can support.
Added test to pdfoutput 06 markers. Confirmed to fail prior to this MR, fixed after this MR. No other markers tests changed output.
Also fixed pdf version error, we now only support PDF 2.0 and not any version lower than this. PDF changes very little and our output is actually PDF 1.4 because very little changed between 1.4 and 2.0 outside of the tightening for archive standards. This is the policy of the PDF Ass. and CapyPDF.
Also remove polyfill from pdfoutput test fill.