Changeset 182 for sans/Analysis/branches/ajj_23APR07/IGOR_Package_Files/Put in User Procedures/SANS_Models_v3.00/Models_2D

Adding a whole bunch of stuff to allow analysis of 2D data sets:

-PlotUtils2D.ipf, which works with the Wrapper panel to allow loading, plotting, and fitting of 2D data (when the checkbox is selected)
-Cylinder_2D.ipf, which is the initial form of a 2D fitting function. No smeared version, no threading, no real testing yet.

The Analysis template is not yet aware of these changes, they must be loaded manually.