GSF.SELEventParser: Fixed date-time parsing for SEL event files.
GSF.SELEventParser: Fixed date-time parsing for SEL event files.

git-tfs-id: [https://tfs.codeplex.com/tfs/TFS07]$/gsf/Main;C88018

rmc00/gsf,rmc00/gsf,rmc00/gsf,rmc00/gsf,GridProtectionAlliance/gsf,GridProtectionAlliance/gsf,GridProtectionAlliance/gsf,GridProtectionAlliance/gsf,GridProtectionAlliance/gsf,GridProtectionAlliance/gsf,rmc00/gsf,rmc00/gsf,GridProtectionAlliance/gsf,rmc00/gsf,GridProtectionAlliance/gsf