Update ISI reader to swallow all its logs

[bherr2]

It has been requested multiple times to stop logging many of the warnings shown by the ISI file reader. Give the ISI file reader a fake LogService instance that swallows all logs (or possibly System.out.println's them).

Basically update this line:
https://github.com/CIShell/cishell-plugins/blob/master/converter/edu.iu.nwb.converter.prefuseisi/src/edu/iu/nwb/converter/prefuseisi/reader/PrefuseIsiReader.java#L36

To use a fake log service so that the warnings outputted by:
https://github.com/CIShell/cishell-plugins/blob/master/shared/edu.iu.nwb.shared.isiutil/src/edu/iu/nwb/shared/isiutil/ISITableReaderHelper.java

Are not seen by the user.

Please compile the updated isi converter jar and attach it here.