[ACA-3416] Add Claim/Release actions on adf task form (#5753)

* [ACA-3255] FE - Claim a task

* * Added unit tests

* * Added unit tests
* Changed cloud directive names

* * Added/Updated documents

* * Added showReleaseClaim button flag
* Add unit test too

* * Used claim/release directive in task-header component.

* * Fixed unit test

* * Fixed one comment

* * After rebase

* * Fixed comments

docs/process-services/components/form-custom-outcome.component.md

@@ -0,0 +1,34 @@
+---
+Title: Form custom outcomes component
+Added: v3.9.0
+Status: Active
+Last reviewed: 2020-06-09
+---
+
+# [Form custom outcomes component](../../../lib/process-services/src/lib/form/form-custom-outcomes.component.ts "Defined in form-custom-outcomes.component.ts")
+
+Supplies custom outcome buttons to be included in [Form component](form.component.md).
+
+![](../../docassets/images/form-custom-outcomes.component.png)
+
+## Basic Usage
+
+```html
+<adf-form>
+    <adf-form-custom-outcomes>
+        <button mat-button (click)="onCustomOutcome1()">
+            Custom-outcome-1
+        </button>
+        <button mat-button (click)="onCustomOutcome2()">
+            Custom-outcome-2
+        </button>
+        <button mat-button (click)="onCustomOutcome3()">
+            Custom-outcome-3
+        </button>
+    </adf-form-custom-outcomes>
+</adf-form>
+```
+
+## See Also
+
+-   [Form component](form.component.md)

docs/process-services/components/task-form.component.md

@@ -47,6 +47,8 @@ Shows a [`form`](../../../lib/process-services/src/lib/task-list/models/form.mod
 | formLoaded | [`EventEmitter`](https://angular.io/api/core/EventEmitter)`<`[`FormModel`](../../../lib/core/form/components/widgets/core/form.model.ts)`>` | Emitted when the form is loaded or reloaded. |
 | formSaved | [`EventEmitter`](https://angular.io/api/core/EventEmitter)`<`[`FormModel`](../../../lib/core/form/components/widgets/core/form.model.ts)`>` | Emitted when the form is submitted with the `Save` or custom outcomes. |
 | showAttachForm | [`EventEmitter`](https://angular.io/api/core/EventEmitter)`<void>` | Emitted when the form associated with the form task is attached. |
+| taskClaimed | [`EventEmitter`](https://angular.io/api/core/EventEmitter)`<string>` | Emitted when the task is claimed. |
+| taskUnclaimed | [`EventEmitter`](https://angular.io/api/core/EventEmitter)`<string>` | Emitted when the task is unclaimed (ie, requeued). |
 
 ## See also
 

docs/process-services/components/task-header.component.md

@@ -27,6 +27,7 @@ Shows all the information related to a task.
 | ---- | ---- | ------------- | ----------- |
 | formName | `string` | null | The name of the form. |
 | taskDetails | [`TaskDetailsModel`](../../../lib/process-services/src/lib/task-list/models/task-details.model.ts) |  | (required) Details related to the task. |
+| showClaimRelease | `boolean` | true | Toggles display of the claim/release button. |
 
 ### Events