IsGISAXS reference files removed

...erenceData/IsGISAXS/FormFactors/isgi_aniso_pyramid_BA.ima

Tests/ReferenceData/IsGISAXS/FormFactors/isgi_box_BA.ima

Tests/ReferenceData/IsGISAXS/FormFactors/isgi_box_BA.inp

Tests/ReferenceData/IsGISAXS/FormFactors/isgi_cone6_BA.ima

Tests/ReferenceData/IsGISAXS/FormFactors/isgi_cone6_BA.inp

Tests/ReferenceData/IsGISAXS/FormFactors/isgi_cone_BA.ima

Tests/ReferenceData/IsGISAXS/FormFactors/isgi_cone_BA.inp

...erenceData/IsGISAXS/FormFactors/isgi_cuboctahedron_BA.ima

...s/ReferenceData/IsGISAXS/FormFactors/isgi_cylinder_BA.ima

...s/ReferenceData/IsGISAXS/FormFactors/isgi_cylinder_BA.inp

.../ReferenceData/IsGISAXS/FormFactors/isgi_ellipsoid_BA.ima

.../ReferenceData/IsGISAXS/FormFactors/isgi_ellipsoid_BA.inp

...eferenceData/IsGISAXS/FormFactors/isgi_full_sphere_BA.ima

...eferenceData/IsGISAXS/FormFactors/isgi_full_sphere_BA.inp

...erenceData/IsGISAXS/FormFactors/isgi_full_spheroid_BA.ima

...renceData/IsGISAXS/FormFactors/isgi_hemi_ellipsoid_BA.ima

...renceData/IsGISAXS/FormFactors/isgi_parallelepiped_BA.ima

...renceData/IsGISAXS/FormFactors/isgi_parallelepiped_BA.inp

Tests/ReferenceData/IsGISAXS/FormFactors/isgi_prism3_BA.ima

Tests/ReferenceData/IsGISAXS/FormFactors/isgi_prism3_BA.inp