[Stylesheets] Add style sheet loader

Add style sheet loader and move style sheets inclusion
out of index.html. WTD-591.

platform/commonUI/general/src/StyleSheetLoader.js

@@ -0,0 +1,31 @@
+/*global define*/
+
+define(
+    ["angular"],
+    function (angular) {
+        "use strict";
+
+        function StyleSheetLoader(stylesheets, $document) {
+            var head = $document.find('head');
+
+            function addStyleSheet(stylesheet) {
+                var link = angular.element('<link>'),
+                    path = [
+                        stylesheet.bundle.path,
+                        stylesheet.bundle.resources,
+                        stylesheet.stylesheetUrl
+                    ].join("/");
+
+                link.attr("rel", "stylesheet");
+                link.attr("type", "text/css");
+                link.attr("href", path);
+
+                head.append(link);
+            }
+
+            stylesheets.forEach(addStyleSheet);
+        }
+
+        return StyleSheetLoader;
+    }
+);