feat(demo): add textarea to the demo page

packages/angular/demo/src/app/inputs/inputs-test-page.component.html

@@ -31,6 +31,18 @@
       <span id="ionTextInputOutput">{{ionTextInput}}</span>
     </ion-col>
   </ion-row>
+  <ion-row>
+    <ion-col>
+      <ion-item>
+        <ion-label>Ionic Text Area Input</ion-label>
+        <ion-textarea id="ionTextareaInput" name="ionTextareaInput" [(ngModel)]="ionTextareaInput"></ion-textarea>
+      </ion-item>
+    </ion-col>
+    <ion-col>
+      Ionic Text Input:
+      <span id="ionTextInputOutput">{{ionTextareaInput}}</span>
+    </ion-col>
+  </ion-row>
 
   <ion-row>
     <ion-col>

packages/angular/demo/src/app/inputs/inputs-test-page.component.ts

@@ -7,6 +7,7 @@ import { Component, OnInit, ViewEncapsulation } from '@angular/core';
   encapsulation: ViewEncapsulation.None
 })
 export class InputsTestPageComponent implements OnInit {
+  ionTextareaInput = 'This is the Ionic Textarea Input';
   ionTextInput = 'This is the Ionic Text Input';
   stdTextInput = 'This is the HTML Text Input';
 

packages/angular/demo/src/app/shared/ion-text-value-accessor/ion-text-value-accessor.directive.ts

@@ -5,7 +5,7 @@ import { ControlValueAccessor, NG_VALUE_ACCESSOR } from '@angular/forms';
 // May also need to look at this to see if we need anything else:
 // https://github.com/angular/angular/blob/5.0.1/packages/forms/src/directives/default_value_accessor.ts#L33-L101
 @Directive({
-  selector: 'ion-input',
+  selector: 'ion-input,ion-textarea',
   providers: [{ provide: NG_VALUE_ACCESSOR, useExisting: IonTextValueAccessorDirective, multi: true }]
 })
 export class IonTextValueAccessorDirective implements ControlValueAccessor {