DocumentList - Check permissions on delete folder/file (#1808)

* Add check permission on delete folder/file

* Provide a way to disable the action when if there is no permission

* Improve the code using the external permission inside the folder/document action service

* Add basic documentation.
 - How disable the button when the permission is missing
 - How to show a notification message when the permission is missing

* Resize the image

* Change the value to true for demo purpose

* Update folder-actions.service.ts

* Update document-actions.service.ts

demo-shell-ng2/app/components/files/files.component.html

@@ -70,7 +70,10 @@
                 </content-action>
                 <content-action
                         target="folder"
+                        permission="delete"
+                        [disableWithNoPermission]="true"
                         title="{{'DOCUMENT_LIST.ACTIONS.FOLDER.DELETE' | translate}}"
+                        (permissionEvent)="onPermissionsFailed($event)"
                         handler="delete">
                 </content-action>
                 <!-- document actions -->
@@ -91,6 +94,9 @@
                 </content-action>
                 <content-action
                         target="document"
+                        permission="delete"
+                        [disableWithNoPermission]="true"
+                        (permissionEvent)="onPermissionsFailed($event)"
                         title="{{'DOCUMENT_LIST.ACTIONS.DOCUMENT.DELETE' | translate}}"
                         handler="delete">
                 </content-action>