[2.0.0-beta5] Add new EnumSetPropType

Work in progress. Remaining work to do:

• Test SelectsWidget with #3485201: [1.1.0] ⚠️ From Layout Options to UI Patterns 2.x
• Do we put select title only when minItems?
• If possible: Dynamic number of selects elements when no maxItems
• Update schema compatibility checker?
• Unit tests

Current status.

OOS:

• Test SelectsWidget with #3485201: [1.1.0] ⚠️ From Layout Options to UI Patterns 2.x >> DONE
• Do we put select title only when minItems? >> NO, we always print it, for accessibility
• If possible: Dynamic number of selects elements when no maxItems >> NO, let's keep thing simple
• Update schema compatibility checker? >> Not now

TODO:

• Update the management of enumeration in both widgets and prop types
• Unit tests?

Update the management of enumeration in both widgets and prop types

DONE

Thanks you. Changes done.

I was not sure about the naming of the trait, so I did "EnumTrait"

I don't reproduce this on my environment. This is an enum_list:

    offset_xl:
      title: "Columns offset (extra large)"
      type: array
      maxItems: 3
      items:
        type: integer
        enum: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]

This is an enum_set:

    test:
      title: "Test"
      type: array
      uniqueItems: true
      maxItems: 3
      items:
        type: integer
        enum: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12] 

and put priority: 1 to EnumList prop type in its attributes

But we need to do some changes because it is better and safer to set priority attribute instead of relying on plugin discovery order, but 1 is already the default value and let's update both enum_set and enum_list:

• Each enum (priority: 10) is also a string (priority: 1) or a number (priority: 1)
• Each identifier (priority: 100) is also a string (priority: 1)
• Each url (priority: 10) is also a string (priority: 1)
• So, each enum_set (priority: 10) is also a enum_list (priority: 1)

Once the change done, CompatibilityChecker must also be updated. Thanks for your proposal, it works well.

Let's fix that in an otehr issue:

Each enum_set (priority: 10) is also a enum_list (priority: 5) which is also a list (priority: 1)