Add Recipe data

[TheKoolPie]

Enhance project by recipes. A recipe has ingredients and amount of those.
Provide functions to create, edit, view and delete recipes.

Data:

• Name
• List of Products with amount
• Instructions
• approx Time
• Image?

Also provide functions and views to add needed ingredients of recipe to shopping list. Do not add ingredients which are already available. Enable user to exclude items from recipes to add to list.