Support creating a projected target PSF #105
Merged
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Makes a forward PSF that, instead of regularizing each star to an unvarying circular shape, regularizes to the shape that a true circular star would take in that portion of the image according to the image's projection. This should ensure that as we go forward to mosaic building and starfield estimation and subtraction, each star ends up with the correct shape no matter where in the image plane it's being observed.
The difference is subtle, but there: