Eliminate ICOSsetup

[nthallen]

This is an ugly hack that has been replaced by ICOS_setup, which returns data neatly hidden inside a structure. It is still used in the following routines:

• basefilefromresid.m
  • obsolete
• diagnose.m
  • largely obsolete.
  • replace with more relevant diagnostics or delete
• dispfix.m
  • likely outdated routine to graphically display fixed and floating parameters
  • could be updated for V4 or deleted
• mixlines.m
  • update to use ICOS_setup
• rrresid.m: returns residuals
  • Not clear whether this is still used anywhere (not here!)
  • Could be updated or deleted

[nthallen]

icosfit_optimizer provides useful ways to compare runs that could replace much of diagnose.m, but it does not provide a direct comparison of calculated and floating width values.

[nthallen]

Consider altering the definition of ICOSconfig.m to a function to create a struct rather than dumping a bunch of variables in the workspace. That would ultimately simplify ICOS_setup. Could change the name of the file so ICOS_setup would know how to invoke it.

[nthallen]

basefilefromresid.m: deleted diagnose.m: fixed dispfix.m: fixed mixlines.m: fixed rrresid.m: Still pending