xcsv TIMET_TIME, TIMET_TIME_MS fix for the last fix. (#490)

xcsv TIMET_TIME, TIMET_TIME_MS fix for the last fix. (#490)

* xcsv TIMET_TIME, TIMET_TIME_MS fix for the last fix.

e483407cf recently made a "fix" to TIMET_TIME_MS output.  Unfortunately
it used a non-standard strftime specifier.  While this worked on
linux systems it crashed with MSVC.

This removes strftime processing from TIMET_TIME_MS output.  This makes
TIME_TIME, TIMET_TIME_MS analogous.  Also input and output are
invertbile.  Note that the documentation for these fields never mentioned
strptime or strftime, but says the are long intergers requiring long
integer printf conversions.

* Fix TIMET_TIME, TIMET_TIME_MS documentation.

These have been converted to 64 bit values to prepare for 2038.

* update style files for 64bit TIMET_TIME, TIMET_TIME_MS.