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/ios/ios.qrc

@@ -1,5 +1,8 @@
 <RCC>
     <qresource prefix="/ios">
-        <file>images/iossettings.png</file>
+        <file>images/iosdevice.png</file>
+        <file>images/iosdevice@2x.png</file>
+        <file>images/iosdevicesmall.png</file>
+        <file>images/iosdevicesmall@2x.png</file>
     </qresource>
 </RCC>

src/plugins/ios/iosconfigurations.cpp

@@ -175,7 +175,6 @@ static void printKits(const QSet<Kit *> &kits)
 static void setupKit(Kit *kit, Core::Id pDeviceType, ClangToolChain *pToolchain,
                      const QVariant &debuggerId, const Utils::FileName &sdkPath, BaseQtVersion *qtVersion)
 {
-    kit->setIconPath(FileName::fromString(QLatin1String(Constants::IOS_SETTINGS_CATEGORY_ICON)));
     DeviceTypeKitInformation::setDeviceTypeId(kit, pDeviceType);
     ToolChainKitInformation::setToolChain(kit, pToolchain);
     QtKitInformation::setQtVersion(kit, qtVersion);

src/plugins/ios/iosconstants.h

@@ -35,7 +35,6 @@ Q_DECLARE_LOGGING_CATEGORY(iosLog)
 
 namespace Constants {
 const char IOS_SETTINGS_ID[] = "CC.Ios Configurations";
-const char IOS_SETTINGS_CATEGORY_ICON[] = ":/ios/images/iossettings.png";
 const char IOSQT[] = "Qt4ProjectManager.QtVersion.Ios"; // this literal is replicated to avoid dependencies
 
 const char IOS_DEVICE_TYPE[] = "Ios.Device.Type";

src/plugins/ios/iosdevice.cpp

@@ -92,7 +92,10 @@ IosDevice::IosDevice()
     ports.addRange(Utils::Port(Constants::IOS_DEVICE_PORT_START),
                    Utils::Port(Constants::IOS_DEVICE_PORT_END));
     setFreePorts(ports);
-    setDeviceIcon({Utils::Icon(":/ios/images/iossettings.png")});
+    setDeviceIcon({Utils::Icon({{":/ios/images/iosdevicesmall.png",
+                                 Utils::Theme::PanelTextColorDark}}, Utils::Icon::Tint),
+                   Utils::Icon({{":/ios/images/iosdevice.png",
+                                 Utils::Theme::IconsBaseColor}})});
 }
 
 IosDevice::IosDevice(const IosDevice &other)