Local account can now log in and save username, password, groupID, and first name.
Not tested other than confirming the user remains logged in when relaunching the app.
Dealt with several CreateAccount bugs, edited first page and back-button logic, formatted the layout of login and createAccount.
Merge branch 'develop' of https://github.com/TAMUSeniorDesignCS/MobileApp-Android into feature/Login
Merge branch 'feature/Login' into develop