Search bar and quantity

[andavgc]

Now the Search Bar is working well:

• In the main Page you can Search for a product and you're goind to receive suggestions amount the available items to choose
• Selecting any suggestions is going to autocomplete the text for you on the search bar
• You can seek for the product perssing Enter or clicking on the icon of search
• In the Food Menu a filter is going to be applied in real time in the display

Also, the quantity selection is working and is going to multiply the product quantity and the price.

This RP includes new features and organization for the Account and AccountList Classes for its future implementation.