Emacs plugin for Typed Clojure

Should have similar features to https://github.com/typedclojure/vim-typedclojure

Right now Typed Clojure just spews out type errors, it would be nice if they were hyperlinked to the sources. Most of the work is already done, this is mostly all it took for the Vim plugin: https://github.com/typedclojure/vim-typedclojure/blob/master/plugin/typedclojure.vim#L53

Also some bindings for common refactorings like wrapping in `ann-form` or making an
`ann` for directly above a `def`.

A binding for `cf` (type check current form) would be good.