Repository for ingredients

[halkszavu]

Services:

• Create a new ingredient
• Modify ingredient:
  • modify its name
  • modify its amount
  • modify its time of preparation

[halkszavu]

An ingredient should be linked to a recipe

[halkszavu]

Some ingredients have substitutions. There should be a default ingredient, and (one or more) substitutes, which are optional. The grocery list can be set to include a substitute. This means, the substitutions have to be annotated, so they don't show up in the default recipe.