Themable, HighDpi Android/iOS device icons

Also used as option category icons

Change-Id: I40916ff4683554a3e7de7126d737286eba4a525f
Reviewed-by: Vikas Pachdha <vikas.pachdha@qt.io>
Reviewed-by: Alessandro Portale <alessandro.portale@qt.io>

src/plugins/android/android.qrc

@@ -1,6 +1,9 @@
 <RCC>
     <qresource prefix="/android">
-        <file>images/QtAndroid.png</file>
+        <file>images/androiddevice.png</file>
+        <file>images/androiddevice@2x.png</file>
+        <file>images/androiddevicesmall.png</file>
+        <file>images/androiddevicesmall@2x.png</file>
         <file>images/download.png</file>
         <file>Android.mimetypes.xml</file>
     </qresource>

src/plugins/android/androidconstants.h

@@ -48,7 +48,6 @@ enum AndroidQemuStatus {
 
 namespace Constants {
 const char ANDROID_SETTINGS_ID[] = "BB.Android Configurations";
-const char ANDROID_SETTINGS_CATEGORY_ICON[] = ":/android/images/QtAndroid.png";
 const char ANDROID_TOOLCHAIN_ID[] = "Qt4ProjectManager.ToolChain.Android";
 const char ANDROIDQT[] = "Qt4ProjectManager.QtVersion.Android";
 

src/plugins/android/androiddevice.cpp

@@ -45,7 +45,10 @@ AndroidDevice::AndroidDevice()
 {
     setDisplayName(QCoreApplication::translate("Android::Internal::AndroidDevice", "Run on Android"));
     setDeviceState(DeviceReadyToUse);
-    setDeviceIcon({Utils::Icon(":/android/images/QtAndroid.png")});
+    setDeviceIcon({Utils::Icon({{":/android/images/androiddevicesmall.png",
+                                 Utils::Theme::PanelTextColorDark}}, Utils::Icon::Tint),
+                   Utils::Icon({{":/android/images/androiddevice.png",
+                                 Utils::Theme::IconsBaseColor}})});
 }
 
 AndroidDevice::AndroidDevice(const AndroidDevice &other)