task/ta-npi-108-01 -- Fast state-based loader file input

nparcel/conf/nparceld.conf
* updated the "file_bu" section to include the various Fast state-based
  filename derivatives

nparcel/config.py
* updated the bu_to_file() method so that it ignores state-based
  filename BU tokens

nparcel/loaderdaemon.py
* updated the validate_file() method so that it can support state-based
  loader filenames