reportlab: improve ImageReader so it works with Image flowables in the absence of PIL
reportlab: improve ImageReader so it works with Image flowables in the absence of PIL

kanarelo/reportlab,kanarelo/reportlab,Distrotech/reportlab,Distrotech/reportlab,Distrotech/reportlab,kanarelo/reportlab,Distrotech/reportlab,kanarelo/reportlab,kanarelo/reportlab,Distrotech/reportlab