Add more isearch-related bindings to ns-win.el
* lisp/term/ns-win.el (minibuffer-local-isearch-map): Add more bindings to mirror bindings in isearch.el (bug#15667).
* lisp/term/ns-win.el (minibuffer-local-isearch-map): Add more bindings to mirror bindings in isearch.el (bug#15667).