API enabled lists

[jenbutongit]

Is your feature request related to a problem? Please describe.
Allow lists to be populated via API.

Describe the solution you'd like

1. a list should be populated via API for the designer (so conditions could be built around it)2.
2. a list and the related components (like radio, autocomplete field etc) will be populated in the runner

• The API serving the list must return a JSON object that matches the listSchema as described in /model/src/schema/schema.ts

{
  "name": "myApiList",
  "title": "my api list",
  "items": [
    {
      "text": "item 1",
      "value": "item-1",
      "description": "an optional description"
    }
  ]

}

If these lists are used by conditions, there is a likelihood that these conditions break if the values change.