[AAE-6207] Storybook stories for Toolbar (#7322)

* [AAE-6207] added stories

* [AAE-6207] added core story  module

* [AAE-6207] added undefined color story

lib/core/testing/core.story.module.ts

@@ -0,0 +1,30 @@
+/*!
+ * @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 { NgModule } from '@angular/core';
+import { CoreModule } from '../core.module';
+import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
+import { TranslateModule } from '@ngx-translate/core';
+
+@NgModule({
+    imports: [
+        TranslateModule.forRoot(),
+        CoreModule.forRoot(),
+        BrowserAnimationsModule
+    ]
+})
+export class CoreStoryModule { }