[ADF-5417] Support multiple search configuration in app config json (#7096)

* [ACS-1642] Support multiple search configuration in app config json

* [ci:force] unit test added

* adf component added

* [ci:force] check compatibility

* [ci:force] * run all e2e

* * revert initvalue

* [ci:force] revert app config

* [ci:force] docs update

lib/content-services/src/lib/search/models/facet-field.interface.ts

@@ -0,0 +1,35 @@
+/*!
+ * @license
+ * Copyright 2019 Alfresco Software, Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { SearchFilterList } from './search-filter-list.model';
+import { FacetFieldBucket } from './facet-field-bucket.interface';
+
+export interface FacetField {
+    field: string;
+    label: string;
+    mincount?: number;
+    limit?: number;
+    offset?: number;
+    prefix?: string;
+
+    buckets?: SearchFilterList<FacetFieldBucket>;
+    pageSize?: number;
+    currentPageSize?: number;
+    checked?: boolean;
+    type?: string;
+    [propName: string]: any;
+}