Add "inellip" parameter to Isophote.Ellipse fit_image() method

Hi,

Sometimes I would like to extract surface brightness profiles using the pre-defined ellipses, just like iraf.ellipse(inellip='XXX.tab') does. Could this inellip parameter be added to fit_image method?

Thanks!

Locate the Isophote.Ellipse fit_image() method and inspect how it currently obtains ellipse definitions. Compare the requested behavior with IRAF ellipse(inellip='XXX.tab'), then add coverage showing that predefined ellipses can produce a surface-brightness profile. Done means fit_image() accepts the requested input and the relevant tests pass.

Written by the indexing model from the issue text.