Change view acording to users's permission

[euaaron]

• new users should be able only to see restaurants list, his orders list, restaurant's menu, create a restaurant or edit his own info;

• employees should be able to see and use only whats their permission level allows;

• visitors should be able to view restaurants menus;

• visitors should be able to view restaurants list;

• visitors should't be able to order or edit anything on the system, if so, they need to create an account first.