LPS-34192 Remove old registration of embedded portlets
LPS-34192 Update embedded portlets UI
LPS-34192 Add embedded portlets rendering context stack classes - no change
LPS-34192 Add embedded portlets rendering context to LayoutTypePortlet - no change
LPS-34192 Add embedded portlets rendering context to LayoutTypePortletImpl
LPS-34192 Use embedded portlets rendering context in portlet container
LPS-34192 Embedded portlets rendering context Theme support: Add RenderingContextThemeHandler - no change
LPS-34192 Embedded portlets rendering context Theme support: Register RenderingContextThemeHandler
LPS-34192 Embedded portlets rendering context LayoutTemplate support: Add LayoutTemplate.timestamp - no change
LPS-34192 Embedded portlets rendering context LayoutTemplate support: Add LayoutTemplateImpl.timestamp - no change
LPS-34192 Embedded portlets rendering context LayoutTemplate support: Register LayoutTemplate.timestamp
LPS-34192 Embedded portlets rendering context LayoutTemplate support: Add RenderingContextLayoutTemplateHandler - no change
LPS-34192 Embedded portlets rendering context LayoutTemplate support: Register RenderingContextLayoutTemplateHandler
LPS-34192 Embedded portlets rendering context Portlet support: Add RenderingContextPortletHandler - no change
LPS-34192 Embedded portlets rendering context Portlet support: Register RenderingContextPortletHandler