Feature/extend use case logic

[flechilla]

Improve the logic of the use cases by setting the form data in as meta data.

• Now, each use case has to be registered
• The use case groups and use cases to use will be taken dynamically from the registered meta-data
• The meta-data of the use cases can be modified on runtime
• We can add new use-case dynamically on runtime
• Remove massive amounts of components and logic that where dispersed