Add arbitrary option for checkboxOne

[Grafikart]

Issue

On some form we want to add an option to allow an additional answer for specific field

Solution

There is not lunatic modelisation for this feature so this PR is a proof of concept and spec. The field is triggered adding extra properties on the "options" field :

{
	"id": "kmort6x9-QOP-kmorue9d",
	"label": {
		"value": "\"Autre\"",
		"type": "VTL"
	},
	"response": { "name": "NATIO1N5" },
+	"detail": {
+		"label": {
+			"value": "\"Préciser : \"",
+			"type": "VTL"
+		},
+		"response": {
+			"name": "NATIO1N5DETAIL"
+		}
+	}
}

Render

Limitation

Since it's a POC it's only applied on CheckboxOne to see if the modelisation fit the need.

Fix #204 Fix #951