Returns the image view over an inline image: the BeginInlineImage operator's dictionary and data.
public PdfImage? GetInlineImage(in ContentOperator op)
The operator, as given to VisitOperator(in ContentOperator, ContentContext).
ISO 32000-2 §8.9.7, Tables 90 to 92. The image's data ends where the content reader found EI: by L (PDF 2.0)
when it leads there, by the data length when the image is unfiltered, by the end-of-data marker of its first filter, else by
the first EI followed by content that parses.