Add text-wrap balance and pretty to complement existing white-space utils

[mdo]

Fixes #41389 for v5. Complemented by #41490 for v6, which replaces the white-space utilities with all text-wrap.

[coliff]

just a thought, text-pretty and text-balance class names aren't super obvious what they do. Perhaps they could be text-wrap-pretty and text-wrap-balance instead... There is already a text-wrap and these are a type of text-wrap so it makes sense to me to have wrap in the class name.