Enhance build time display format, change to following format:
Enhance build time display format, change to following format:

Build environment: Windows-Vista-6.1.7600
Build start time: 13:46:43, Oct.21 2010
……
- Failed -
Build end time: 13:47:00, Oct.21 2010
Build total time: 00:16


git-svn-id: f3880c1fc5096ce2109c8aec392d8e07f619f417@2077 c2973edb-eda0-4c78-bc6a-9341b269661f

tianocore/buildtools-BaseTools,tianocore/buildtools-BaseTools,tianocore/buildtools-BaseTools,tianocore/buildtools-BaseTools,bitcrystal/buildtools-BaseTools,tianocore/buildtools-BaseTools,bitcrystal/buildtools-BaseTools,bitcrystal/buildtools-BaseTools,bitcrystal/buildtools-BaseTools,bitcrystal/buildtools-BaseTools