Finalized Menu UI

Changes:
- Deleted source/header files for adding patients; adding patients
still does not work, however.
- Newsfeed is now a table view; values cannot be added yet, but the
table controller should be able to filter and sort it using the search
bar with some Swift coding.
- Notes app has been added; unfortunately, there is no way to save the
notes yet, but if someone can look up how to do permanent storage I it
would help us greatly.
- Made some changes to menu navigation, which you can see by running
the app.
Edited Login UI and Add Patient Panel
Merge branch 'Bryce's-Branch'