[DW-1486] form versioning and cloud service enhancements (#5248)

* support form versions retrieval

* rework cloud services, reduce code duplication

* revert app config changes

* fix api spelling error

* support task form versioning

* turn TaskDetailsCloudModel into interface

* remove commented code

* fix test

* update tests

* remove useless provider declarations

lib/content-services/src/lib/directives/node-lock.directive.spec.ts

@@ -21,9 +21,7 @@ import { Component, DebugElement } from '@angular/core';
 
 import { NodeLockDirective } from './node-lock.directive';
 import { Node } from '@alfresco/js-api';
-import { NodeActionsService } from '../document-list/services/node-actions.service';
 import { ContentNodeDialogService } from '../content-node-selector/content-node-dialog.service';
-import { DocumentListService } from '../document-list/services/document-list.service';
 import { CoreModule, setupTestBed } from '@alfresco/adf-core';
 
 const fakeNode: Node = <Node> {
@@ -49,11 +47,6 @@ describe('NodeLock Directive', () => {
         imports: [
             CoreModule.forRoot()
         ],
-        providers: [
-            NodeActionsService,
-            ContentNodeDialogService,
-            DocumentListService
-        ],
         declarations: [
             TestComponent,
             NodeLockDirective