feat(wpcarro/emacs): Move PL support to separate module

Declutter init.el.

Change-Id: I0af874adaab4471741f9d344f539dd6164e2afff
Reviewed-on: https://cl.tvl.fyi/c/depot/+/5561
Reviewed-by: wpcarro <wpcarro@gmail.com>
Autosubmit: wpcarro <wpcarro@gmail.com>
Tested-by: BuildkiteCI

users/wpcarro/emacs/.emacs.d/init.el

@@ -13,10 +13,4 @@
 (require 'wpc-org)
 (require 'wpc-company)
 (require 'wpc-shell)
-(require 'wpc-lisp)
-(require 'wpc-haskell)
-(require 'wpc-elixir)
-(require 'wpc-nix)
-(require 'wpc-rust)
-(require 'wpc-clojure)
-(require 'wpc-prolog)
+(require 'wpc-language-support)