Move font-pillar into its own css file

So we can easily link it from attract/flamenco/etc

src/styles/_base.sass

@@ -878,6 +878,15 @@ label, label.control-label
 	&:before
 		position: relative
 
+.pi-license-cc-zero:before
+	content: '\e85a'
+.pi-license-cc-sa:before
+	content: '\e858'
+.pi-license-cc-nd:before
+	content: '\e859'
+.pi-license-cc-nc:before
+	content: '\e857'
+
 .pi-license-cc-0
 	@extend .pi-license-cc-zero
 	position: relative