[AAE-534] Core - add search cloud component (#5193)

* [AAE-534] - add search cloud component

* change doc file

* more changes on doc file

* remove empty scss file

* add animation and more customizations

* add preselect value property

* fix unit tests

docs/core/components/search-cloud.component.md

@@ -0,0 +1,40 @@
+---
+Title: Search Cloud Component
+Added: v3.5.0
+Status: Active
+Last reviewed: 2019-10-24
+---
+
+# [Search Cloud Component](../../../lib/core/search-cloud/search-cloud.component.ts "Defined in pagination.component.ts")
+
+Should manage search for cloud components
+
+## Basic Usage
+
+```html
+<adf-search-cloud>
+    [type]="'text'"
+    [placeholder]="'placeholder'"
+    [debounceTime]="200"
+    [expandable]='false'
+    (change)="onSearchValueChanged($event)"
+</adf-search-cloud>
+```
+
+## Class members
+
+### Properties
+
+| Name | Type | Default value | Description |
+| ---- | ---- | ------------- | ----------- |
+| type | [`SearchCloudTypesEnum`](../../../lib/core/models/search-cloud.model.ts) |  | search type ('text'). |
+| value | `string` |  | preselected input value |
+| expandable | `boolean` | false | The field should expand on click when this flag is true |
+| placeholder | `string` |  | placeholder content. |
+| debounceTime | `number` | 500 | Time in miliseconds for debounce the event. |
+
+### Events
+
+| Name | Type | Description |
+| ---- | ---- | ----------- |
+| change | [`EventEmitter`](https://angular.io/api/core/EventEmitter)`<string>` | Emitted when search widget value is changed. |