Setup Wizard: Create/manage entity types

[sleidig]

As an admin I want to add new entity types to the system in order to adapt the software to our project's evolving processes.

Other parts of the Setup Wizard / Admin UI allow to change the data structure of an existing entity type. This feature should allow a user to create a new entity type (e.g. add a "school", "survey" or other record type with a custom form structure).

Proposed Solutions & Alternatives

• Show a table of all Entity types, allow to navigate to the admin details of each (i.e. the form builder view)
• Allow to "add new" entries from this table

Advanced future considerations In complex setups there can be many entity types with various relations. A visual "entity map" displaying hierarchies and connections would be useful at some point in time.

Implementation steps:

• [x] create a new component "AdminEntityTypesComponent"
• [x] inject EntityRegistry service and display a table of all registered entity types
• [x] route to the related AdminEntityDetailsComponent upon clicking on a row (--> /admin/entity//details)
• [x] add a "Create New" button
  • ??? display popup form of static type details (#2120)?
  • generate config sections for entity:, view: and view:/:id

[sleidig]

A rough prototype has been implemented already for some time. This needs more testing, UI polishing and a better place in the Admin Section and Setup Wizard, however.