OrganizationLookup - Use british english spelling of organization throughout

[HauklandJ]

The breaking parts are:

DatamodelBindings - organisation_lookup_orgnr, organisation_lookup_name

Type - OrganisationLookup

The app layout diff we want:

      {
        "id": "my-id",
-       "type": "OrganisationLookup",
+       "type": "OrganizationLookup",
        "dataModelBindings": {
-         "organisation_lookup_orgnr": "MyModel.MyProperty",
+         "organization_lookup_orgnr": "MyModel.MyProperty",
-         "organisation_lookup_name": "MyModel.MyProperty2"
+         "organization_lookup_name": "MyModel.MyProperty2"
        }
      },