ProjectExplorer: Move setting category icon out of Core

This image is used exclusively in the ProjectExplorer
plugin, thus belong into ProjectExplorer resources.

Change-Id: If210ae47a27b37882db43729e6a91e557b513c22
Reviewed-by: Daniel Teske <daniel.teske@digia.com>

src/plugins/coreplugin/core.qrc

@@ -73,7 +73,6 @@
         <file>images/category_cpaster.png</file>
         <file>images/filtericon.png</file>
         <file>images/filtericon@2x.png</file>
-        <file>images/category_buildrun.png</file>
         <file>images/button_close.png</file>
         <file>images/button_close@2x.png</file>
         <file>images/splitbutton_closebottom.png</file>

src/plugins/projectexplorer/projectexplorer.qrc

 <RCC>
     <qresource prefix="/projectexplorer">
         <file>images/build_small.png</file>
+        <file>images/category_buildrun.png</file>
         <file>images/clean.png</file>
         <file>images/clean_small.png</file>
         <file>images/closetab.png</file>

src/plugins/projectexplorer/projectexplorerconstants.h

@@ -178,7 +178,7 @@ const char RESOURCE_MIMETYPE[]    = "application/vnd.qt.xml.resource";
 // Settings page
 const char PROJECTEXPLORER_SETTINGS_CATEGORY[]  = "K.ProjectExplorer";
 const char PROJECTEXPLORER_SETTINGS_TR_CATEGORY[] = QT_TRANSLATE_NOOP("ProjectExplorer", "Build & Run");
-const char PROJECTEXPLORER_SETTINGS_CATEGORY_ICON[]  = ":/core/images/category_buildrun.png";
+const char PROJECTEXPLORER_SETTINGS_CATEGORY_ICON[]  = ":/projectexplorer/images/category_buildrun.png";
 const char PROJECTEXPLORER_SETTINGS_ID[] = "A.ProjectExplorer.ProjectExplorer";
 const char TOOLCHAIN_SETTINGS_PAGE_ID[] = "M.ProjectExplorer.ToolChainOptions";
 const char DEBUGGER_SETTINGS_PAGE_ID[] = "N.ProjectExplorer.DebuggerOptions";