Fix the creation of the Itime2 variable (milliseconds since midnight) which was previously omitted from the new restart file. Also update the help to better describe how the optional out_date argument works.
Fix the creation of the Itime2 variable (milliseconds since midnight) which was previously omitted from the new restart file. Also update the help to better describe how the optional out_date argument works.

pwcazenave/fvcom-toolbox,pwcazenave/fvcom-toolbox