feat(emacs-org): Add basic org configs

* LaTeX Preview
* Remove custom.el from VCS

tools/emacs.d/lisp/init-org.el

@@ -0,0 +1,57 @@
+;;; init-org.el
+
+(use-package org
+  :ensure nil ;; Use Emacs built-in Org Mode
+  :config
+  (setq org-log-done 'time)
+  (setq org-startup-indented nil)
+  ;; Use inline image
+  (setq org-startup-with-inline-images t)
+  ;; Use LaTeX rendering
+  (setq org-startup-with-latex-preview t)
+  (setq org-image-actual-width 600)
+  ;; Conceal on markup markers
+  (setq org-hide-emphasis-markers t)
+  (setq org-directory "~/OrgFiles")
+  (setq org-agenda-files '("~/OrgFiles"))
+  (setq org-pretty-entities t)
+  (setq org-src-fontify-natively t)
+  (setq org-src-tab-acts-natively t) ; Use TAB to indent inside source block
+  (setq org-src-preserve-indentation t) ; Prevent from auto-indent
+  (with-eval-after-load 'org
+    (define-key org-mode-map (kbd "C-j") 'org-return-indent)
+    (evil-define-key 'normal org-mode-map (kbd "TAB") 'org-cycle))
+    (evil-define-key 'normal org-mode-map (kbd "SPC a") 'org-agenda-list) ; TODO: Here Simulates the leader
+  )
+
+(use-package org-bullets
+  :after org
+  :hook (org-mode . org-bullets-mode))
+
+(use-package org-fragtog
+  :after org
+  :hook (org-mode . org-fragtog-mode))
+
+;; Run source block with C-c C-c
+;; Add supports for non-elisp langs
+(use-package ob-python
+  :ensure nil  ; Part of Org Mode
+  :after org)
+
+(use-package ob-C ;; C++ support is integrated in ob-C
+  :ensure nil  ; Part of Org Mode
+  :after org)
+
+(org-babel-do-load-languages
+ 'org-babel-load-languages
+ '( 
+   (python . t) ; No need to declare C/C++/emacs-lisp since is integrated
+   ))
+;; Use clang as default C/C++ Compiler (Easier to install and configure in Windows)
+(setq org-babel-C-compiler "clang")
+(setq org-babel-C++-compiler "clang++")
+;; Don't ask me again when running source block
+(setq org-confirm-babel-evaluate nil)
+
+
+(provide 'init-org)