add .text-normal, .text-bold, .text-italic classes

Created by: jparmar

we have text formatting classes like text-muted, text-left etc.

like wise please add classes like text-normal, text-bold, text-italic

I know there are alternatives for : text-bold : <strong> text-italic : <em>

but if I have a already bold text and I want to remove the text formatting, then text-normal would be very helpfull.