cider-connect port inference: give clj/cljs/bb context

[vemv]

For the cider-connect* family of functions, we offer some detected nrepl ports that may be running on the user machine, e.g.:

...those choices could include further context if it can be accurately determined.

For instance, if the port was grabbed from a ".shadow-cljs/nrepl.port" file, or from a cider buffer of repl-type cljs, then its context is cljs.

With that info, users can make a better decision when deciding to cider-connect-clj / cider-connect-cljs (e.g. they'll know to connect to the right port, instead of another port that may be running within the same directory).