Iterates through the parameters, adding their sampled value to the netlogo experiment file
add_parameter_value_to_file(xml, PARAMETERS, ParameterInfo, LHC_DESIGN,
SAMPLE, PARAMVALS)
Object of the XML file being constructed
Parameters specified in the R set-up file, of interest in this experiment
Parameters that are being perturbed, and their ranges
The LHC sample generated for these parameters
Number of the sample being processed
Input of parameter ranges or set values specified by the user
Updated XML object ready for output to file