replace identify icon by svg

Author: 3nids

images/images.qrc

@@ -198,6 +198,7 @@
         <file>themes/default/mActionHelpSponsors.png</file>
         <file>themes/default/mActionHideAllLayers.png</file>
         <file>themes/default/mActionIdentify.png</file>
+        <file>themes/default/mActionIdentify.svg</file>
         <file>themes/default/mActionIncreaseBrightness.svg</file>
         <file>themes/default/mActionIncreaseContrast.svg</file>
         <file>themes/default/mActionInOverview.png</file>