Topo2BreadcrumbService is used to render the current depth and location of the users view. It also provides a way of navigating backwards through the regions
#Exposed methods ##init()
##addBreadcrumb(crumbs: json) Takes a json object of current breadcrumb paths and renders them to the DOM
##addLayout(layout: Topo2LayoutSevice) Adds a local reference for the Topo2LayoutService
##hide() Hides the breadcrumb element from the viewport