Use simple_menu module

Refactor menu.py and personal_state to use the simple_menu library.

Documentation/pycardium/simple_menu.rst

+``simple_menu`` - Draw a Menu
+=============================
+To allow quickly hacking some scripts, Pycardium has a small library for
+displaying menus.  You can use it like this:
+
+.. code-block:: python
+
+   import color
+   import simple_menu
+
+
+   class MyMenu(simple_menu.Menu):
+       color_1 = color.CAMPGREEN
+       color_2 = color.CAMPGREEN_DARK
+
+       def on_select(self, name, index):
+           print("{!r} was selected!".format(name))
+
+
+   if __name__ == "__main__":
+       MyMenu(["foo", "bar", "baz"]).run()
+
+.. autoclass:: simple_menu.Menu
+   :members:
+
+.. autofunction:: simple_menu.button_events