Implement ANSI filtering in process responses

Just so that we don't lose information from previous discussions, `inf-clojure` at the moments does not properly parses or filters out ansi coming from the repl process. This is one of the caveats, we should start our repls with no coloring for it to work properly. Of course socket repl is always the best and most reliable way here.

If folks think it is worth having colors, we can take some inspiration from [sbt-mode-comint](https://github.com/hvesalai/sbt-mode/blob/master/sbt-mode-comint.el#L71), or [some SO answer](https://stackoverflow.com/questions/44348443/ansi-coloring-in-emacs-start-process-output-buffer).