[ADF-4432] TaskFormCloudComponent - should be read only if the task is unclaimed. (#4654)

* [ADF-4432] FormCloud - should be read only if the task is unclaimed.* Modifed formCloud component related claim/unclaim custom buttons.* Added unit tests to the recent changes* Created an component to project custom form outcomes.

* * Added documentation to the formcloudcustomoutcome component.

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

@@ -0,0 +1,34 @@
+---
+Title: Form cloud custom outcomes component
+Added: v3.2.0
+Status: Active
+Last reviewed: 2019-04-12
+---
+
+# [Form cloud custom outcomes component](../../../lib/process-services-cloud/src/lib/form/components/form-cloud-custom-outcomes.component.ts "Defined in form-cloud-custom-outcomes.component.ts")
+
+Supplies custom outcome buttons to be included in [Form cloud component](form-cloud.component.md).
+
+![](../../docassets/images/form-cloud-custom-outcomes.component.png)
+
+## Basic Usage
+
+```html
+<adf-cloud-form>
+    <adf-cloud-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-cloud-form-custom-outcomes>
+</adf-cloud-form>
+```
+
+## See Also
+
+-   [Form cloud component](form-cloud.component.md)