ENYO-2328: create the CssEditor kind
ENYO-2328: create the Inspector.Config.Number kind
for now just a copy of the Inspector.Config.Text kind
ENYO-2328: add in package.js CssEditor.js & CssEditor.css
ENYO-2328: inpect() method enhanced as follow
. when this.filterType === "S" instantiate a CssEditor kind