Suggestion: add org-latex-preview to org-ctrl-c-ctrl-c

[Akira Kyle <akira@akirakyle.com>]

I recently thought to add ~org-latex-preview~ to 
~org-ctrl-c-ctrl-c~ and it has been quite the productivity 
booster! Two arguments as to why this should be done:
- ~org-ctrl-c-ctrl-c~ currently does nothing when inside 
  latex-fragment or latex-environment so why not make it 
  ~org-latex-preview~?
- This intuitively matches my muscle memory from using 
  babel. LaTeX is code after all, and I'm often making mistakes, 
  so I want the fastest "edit-compile-edit" loop possible.

Here's what I currently have to achieve this in case anyone wants 
to give it a try right now :)

#+begin_src emacs-lisp
(defun my-org-ctrl-c-ctrl-c-latex-preview-hook ()
  (let ((element (car (org-element-context))))
    (if (or (eq element 'latex-fragment) (eq element 
    'latex-environment))
        (org-latex-preview))))

(add-hook 'org-ctrl-c-ctrl-c-final-hook
              'my-org-ctrl-c-ctrl-c-latex-preview-hook)
#+end_src