`find_resource` should look by controller finder when it's set

`find_resource` method used in breadcrumb, and because id passed to the find_resource is the `to_param` identificator and when in controller set the defaults finder it should find the record with this method
remove duplication of `controller.resources_configuration` around the code
Merge pull request #3092 from dmitry/find_resource_controller_finder_fix

`find_resource` should look by controller finder when it's set