Move richfaces dependency mgmt into QA root pom.xml

Need Mode reference in page fragments module, so move dep. management into QA root pom.xml to not have it twice.
RFPL-2719: Add panelMenu{Group|Item|Icon} page fragments

Since panelMenu, panelMenuGroup and PanelMenuItem are related and the common code in Metamer relates, add them in one step.
Add *Icon fragment for PanelMenuGroup and PanelMenuItem since they have different behavior
Add verify css icons with relative path to WebDriverIconChecker
RFPL-2719: Rewrite rich:panelMenu tests using WebDriver