Changed Drawing.save to allow fileNamePattern to be a callable
Changed Drawing.save to allow fileNamePattern to be a callable

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