Made `add_breadcrumb` accessible to views
Made `add_breadcrumb` accessible to views

Breadcrumbs for actions are now added in views. This is done because
adding them in a controller action would have to be duplicated for
create/update, which may render pages without triggering new/edit.

cysjonathan/coursemology2,cysjonathan/coursemology2,Coursemology/coursemology2,xzhflying/coursemology2,harryggg/coursemology2,Coursemology/coursemology2,Coursemology/coursemology2,BenMQ/coursemology2,harryggg/coursemology2,harryggg/coursemology2,BenMQ/coursemology2,cysjonathan/coursemology2,Coursemology/coursemology2,xzhflying/coursemology2,Coursemology/coursemology2,Coursemology/coursemology2,xzhflying/coursemology2,BenMQ/coursemology2,Coursemology/coursemology2