[Frontend] Time Controller Markup and Styling

open #1515
open #117
Significant re-org in menus.scss continued:
Refactored s-menu to s-menu-btn;
moved look-related style def's into .s-menu;
.menu now extends .s-menu;

platform/commonUI/general/res/sass/user-environ/_layout.scss

@@ -301,9 +301,9 @@
 
 .object-browse-bar .s-btn,
 .top-bar .buttons-main .s-btn,
-.top-bar .s-menu,
+.top-bar .s-menu-btn,
 .tool-bar .s-btn,
-.tool-bar .s-menu {
+.tool-bar .s-menu-btn {
 	$h: $btnToolbarH;
 	height: $h;
 	line-height: $h;