Add 2nd arg to doom-initialize to load core libs

This restores the correct value of noninteractive while core libs are
loading, so packages like recentf can avoid initializing when running
emacs non interactively (thus polluting output or possibly causing
errors).

core/core.el

@@ -314,7 +314,7 @@ If RETURN-P, return the message as a string instead of displaying it."
 ;; Bootstrap functions
 ;;
 
-(defun doom-initialize (&optional force-p)
+(defun doom-initialize (&optional force-p force-load-core-p)
   "Bootstrap Doom, if it hasn't already (or if FORCE-P is non-nil).
 
 The bootstrap process involves making sure 1) the essential directories exist,
@@ -368,7 +368,7 @@ to least)."
       (user-error "Your package autoloads are missing! Run `bin/doom refresh' to regenerate them")))
 
   (require 'core-os)
-  (unless noninteractive
+  (when (or force-load-core-p (not noninteractive))
     (add-hook! 'emacs-startup-hook
       #'(doom|post-init doom|display-benchmark))
     (require 'core-ui)