Display time in ms if <1s and in s if >=1s

[anshooarora]

This is a feature request from @joegardiner https://github.com/extent-framework/extentreports-csharp/pull/195#issuecomment-1777317886:

Probably more of a feature than a fix, but it would be good if this would display as ms if below 1s, and seconds above 1s