task/ta-nst-008-16 -- extract more detail for stocktake reports

nparcel/table/jobitem.py
* extend column extraction in _select_columns() method
task/ta-nst-011-11 -- Xlwriter to write out data

nparcel/xlwriter.py
* update the process() method to output the data column
Merge branch 'task/ta-nst-011-11' into feature/us-nst-011