"illum_ldactools.py": Added checking if enough objects are in the catalog and read the coefficients from ZP fitting directly from file.
"illum_correction_fit.py": Changed input from CSV files to LDAC files.
"illum_correction.sh": Changed from CSV input files to LDAC files.
"illum_correction_contourplot_fitfunction.py": Changed from CSV input files to LDAC files and reading coefficients directly from the fitting file into a dictionary.