Add missing role attributes for all components

[SuperPat45]

Please add missing role attributes for all components. For example:

For tree component, according to https://www.w3.org/WAI/GL/wiki/Using_ARIA_trees : missing role="tree" attribute on the tree root ul container missing role="group" attribute on the treenode ul container missing role="treeitem" attribute on the tree node li container

For menu according to https://www.w3.org/WAI/GL/wiki/Using_ARIA_menus : missing role="menubar" attribute on the menu bar root ul container missing role="menu" attribute on other menu type root ul container missing role="menuitem" attribute on the menuitem li container

For growl and messages components : missing role="alert" for warning and error states messages