Update Font Awesome to the latest version (#14396)

Update the font icon to version 4.1.0.

The enum is now sorted alphabetically by the icon name, while
previously it was sorted by the code point.

The new list is copied from http://fontawesome.io/cheatsheet/ which
contains all the icons in the font.

Change-Id: I41a69248a9e3bd25c90b7f79b5814cdb46b10bbc