docs(ngTouch): define module depending on ngTouch in ngTouch examples

In addition to requiring that the file is loaded, it's also necessary to depend on the ngTouch
module when creating the injector.

Closes #7077

src/ngTouch/directive/ngClick.js

@@ -25,13 +25,16 @@
  * upon tap. (Event object is available as `$event`)
  *
  * @example
-    <example deps="angular-touch.js">
+    <example module="ngClickExample" deps="angular-touch.js">
       <file name="index.html">
         <button ng-click="count = count + 1" ng-init="count=0">
           Increment
         </button>
         count: {{ count }}
       </file>
+      <file name="script.js">
+        angular.module('ngClickExample', ['ngTouch']);
+      </file>
     </example>
  */
 

src/ngTouch/directive/ngSwipe.js

@@ -19,7 +19,7 @@
  * upon left swipe. (Event object is available as `$event`)
  *
  * @example
-    <example deps="angular-touch.js">
+    <example module="ngSwipeLeftExample" deps="angular-touch.js">
       <file name="index.html">
         <div ng-show="!showActions" ng-swipe-left="showActions = true">
           Some list content, like an email in the inbox
@@ -29,6 +29,9 @@
           <button ng-click="delete()">Delete</button>
         </div>
       </file>
+      <file name="script.js">
+        angular.module('ngSwipeLeftExample', ['ngTouch']);
+      </file>
     </example>
  */
 
@@ -49,7 +52,7 @@
  * upon right swipe. (Event object is available as `$event`)
  *
  * @example
-    <example deps="angular-touch.js">
+    <example module="ngSwipeRightExample" deps="angular-touch.js">
       <file name="index.html">
         <div ng-show="!showActions" ng-swipe-left="showActions = true">
           Some list content, like an email in the inbox
@@ -59,6 +62,9 @@
           <button ng-click="delete()">Delete</button>
         </div>
       </file>
+      <file name="script.js">
+        angular.module('ngSwipeRightExample', ['ngTouch']);
+      </file>
     </example>
  */