[ADF-1986] Content matadata editing phase II. (#2796)

* Aspects collection

* Fetch only those metadata aspects which are defined in the application config

* Aspect property filtering first round

* Addig wildcard support for preset, default preset fallback to wildcard, and logging

* Add white list service

* Renaming services

* ContentMetadataService and CardViewItemDispatcherComponent update

* Observables... Observables everywhere...

* Propers CardViewAspect

* Defining more interfaces

* Dummy data and expansions panels

* Fix build attempt & proper panel expansion

* Folder restructuring

* Add different type mappings

* Restructuring Card view component

* Fix build

* More ECM types supported

* Validators first phase, extraction of interfaces, world domination preparation

* Validators phase II.

* Integer and float validators

* Hide empty text items and validation message foundation

* Validation error messages for text item view, small style changes

* Update date item

* bool item component

* Datetimepicker npm module

* Datetime model

* Add mapping for datetime

* Small fixes

* Passing down preset

* Adding forgotten package.json entry

* Adding some tests for wrapper card component

* content-metadata.component tests

* Covering some edge cases, adding some tests

* Fix cardview component's test

* Add datetimepicker to demoshell

* card view component show empty values by default

* displayEmpty dependency injection

* remove table like design from cardview

* Using alfresco-js-api instead of spike

* Remove spike folder and contents

* Fix test

* Cardview updated docs

* Content metadata md

* Fix review issues

* Fix the packagr issue

lib/core/services/alfresco-api.service.ts

@@ -19,7 +19,7 @@ import { Injectable } from '@angular/core';
 import {
     AlfrescoApi, ContentApi, FavoritesApi, NodesApi,
     PeopleApi, RenditionsApi, SharedlinksApi, SitesApi,
-    VersionsApi
+    VersionsApi, ClassesApi
 } from 'alfresco-js-api';
 import * as alfrescoApi from 'alfresco-js-api';
 import { AppConfigService } from '../app-config/app-config.service';
@@ -70,6 +70,10 @@ export class AlfrescoApiService {
         return this.getInstance().core.versionsApi;
     }
 
+    get classesApi(): ClassesApi {
+        return this.getInstance().core.classesApi;
+    }
+
     constructor(private appConfig: AppConfigService,
                 private storage: StorageService) {