Add monmap

>> dso = add_monmap(dso,monitor_map_file)

• IXTdata_source operation
• dso is an [IXTdata_source]
• monitor_map_file is a string defining the location of the monitor map file to be loaded, eg. 'X:\mapfiles\inst.map' or 'inst_maps:::myfile.map'
• this will add a monitor map file location to an IXTdata_source object