Breadcrumbs could not handle multiple paths to access a particular state.

[icybergenome]

Description of issue: If we have a state loggedIn.view1.service1 which could also be accessed by a path loggedIn->view2->service1, then the breadcrumbs would only be based on loggedIn->view1->service1.
Although we can access service1 from view1, but we need to register a state for loggedIn.view2.service1. Since ngbreadcrumb.js is using currentState.parent so it always look for a parent instead of previous state.

[icybergenome]

Any comment on it? Since we can't even write a generic parent to associate with a single child, so that multiple parents could access a particular child. So what could be a possible way out?