[ADF-2556] Created component for add group or user to permission (#3242)

* [ADF-2556] first step to create add people or group to permissions

* [ADF-2556] creating a dialog with user results

* [ADF-2556]
integrated service for add and remove permission from node

* [ADF-2556] fixed behaviour and style for add user group

* [ADF-2556] added some refactoring for dialog service

* [ADF-2556] refactoring the dependencies of the components

* [ADF-2556] added some fix and a new key for dialog

* [ADF-2556] start adding test for node permission service

* [ADF-2556] added test for add permission panel component

* [ADf-2556] adding tests for new add permission component

* [ADF-2556] fixed tests and added documentation

* [ADF-2556] fixed documentation for add-node components

* [ADF-2556] added peer review changes

docs/content-services/add-permission-dialog.component.md

@@ -0,0 +1,63 @@
+---
+Added: v2.4.0
+Status: Active
+Last reviewed: 2018-05-03
+---
+
+# Add Permission Dialog Component
+
+Allow user to search people or group that could be added to the current node permissions.
+
+![Add Permission Component](../docassets/images/add-permission-component.png)
+
+## Basic Usage
+
+```ts
+import { NodePermissionDialogService } from '@alfresco/adf-content-services';
+
+    constructor(private nodePermissionDialogService: nodePermissionDialogService) {
+    }
+
+    this.nodePermissionDialogService.openAddPermissionDialog(this.nodeId).subscribe((selectedNodes) => {
+        //action for selected nodes
+    },
+    (error) => {
+        this.showErrorMessage(error);
+    });
+```
+
+## Class members
+
+### Properties
+
+| Name | Type | Default value | Description |
+| -- | -- | -- | -- |
+| nodeId | `string` | "" |  |
+
+### Events
+
+| Name | Type | Description |
+| -- | -- | -- |
+| success | `EventEmitter<MinimalNodeEntryEntity>` |  |
+| error | `EventEmitter<any>` |  |
+
+## Details
+
+This component extends the [Add permission panel component](../add-permission-panel.component.md) 
+and apply the action confirm when the selection made is accepted.
+The dialog will be opened via the nodePermissionDialogService which will provide an Observable to subscribe to for getting the node selected.
+In case you want the dialog service to take care of update the current node you can call `updateNodePermissionByDialog` in this way : 
+
+```ts
+import { NodePermissionDialogService } from '@alfresco/adf-content-services';
+
+    constructor(private nodePermissionDialogService: nodePermissionDialogService) {
+    }
+
+    this.nodePermissionDialogService.updateNodePermissionByDialog(this.nodeId).subscribe((node) => {
+        //updated node
+    },
+    (error) => {
+        this.showErrorMessage(error);
+    });
+```