Imported the missing lib.software.nmrpipe module into pipe_control.spectrum.
Progress sr #3043: (https://gna.org/support/index.php?3043) - Support for NMRPipe seriesTab format *.ser.
Expected modules for use in lib\software\nmrpipe.py is imported.
Authored by: bugman 2013-06-24
Parent: [r20256]
Child: [r20258]
