feat: added org-habit module

Added a simple way to make the org-habit consistency graphs align to the
right margin as well as being responsive to the width of the window.

init.example.el

@@ -124,6 +124,7 @@
         +babel           ; running code in org
         +capture         ; org-capture in and outside of Emacs
         +export          ; Exporting org to whatever you want
+        +habit           ; Keep track of your habits
         +present         ; Emacs for presentations
         +protocol)       ; Support for org-protocol:// links
        ;;perl              ; write code no one else can comprehend