QmlDesigner: Add timer to library

Task-number: QDS-7582
Change-Id: I048b08cae236bbce39d83c6881abad21592fcb8b
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Henning Gründl <henning.gruendl@qt.io>

src/plugins/qmldesigner/qtquickplugin/qtquickplugin.qrc

@@ -98,5 +98,8 @@
         <file>images/timeline-16px.png</file>
         <file>images/keyframe-16px.png</file>
         <file>images/timeline-animation-16px.png</file>
+        <file>images/timer-16px.png</file>
+        <file>images/timer-24px.png</file>
+        <file>images/timer-24px@2x.png</file>
     </qresource>
 </RCC>

src/plugins/qmldesigner/qtquickplugin/quick.metainfo

@@ -487,6 +487,25 @@ MetaInfo {
         }
     }
 
+    Type {
+        name: "QtQml.Timer"
+        icon: ":/qtquickplugin/images/timer-16px.png"
+
+        Hints {
+            visibleInNavigator: true
+            canBeDroppedInNavigator: true
+            canBeDroppedInFormEditor: false
+            canBeContainer: false
+        }
+
+        ItemLibraryEntry {
+            name: "Timer"
+            category: "d.Qt Quick - Animation"
+            libraryIcon: ":/qtquickplugin/images/timer-24px.png"
+            version: "2.0"
+        }
+    }
+
     Type {
         name: "QtQml.Component"
         icon: ":/qtquickplugin/images/component-icon16.png"