Missed qml file added

interface/resources/qml/hifi/audio/AudioTabButton.qml

@@ -0,0 +1,34 @@
+//
+//  AudioTabButton.qml
+//  qml/hifi/audio
+//
+//  Created by Vlad Stelmahovsky on 8/16/2017
+//  Copyright 2017 High Fidelity, Inc.
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+
+import QtQuick 2.7
+import QtQuick.Controls 2.2
+import "../../controls-uit" as HifiControls
+import "../../styles-uit"
+
+TabButton {
+    id: control
+
+    HifiConstants { id: hifi; }
+
+    contentItem: Text {
+        text: control.text
+        font: control.font
+        color: "white"
+        horizontalAlignment: Text.AlignHCenter
+        verticalAlignment: Text.AlignVCenter
+        elide: Text.ElideRight
+    }
+
+    background: Rectangle {
+        color: control.checked ? hifi.colors.baseGray : "black"
+    }
+}