Analyzer: refactor global and project tool settings usage.

IAnalyzerTool has now 2 new virtual methods used to create the global and per-project settings.
No need to create any static factory method and pass a pointer to them to the AnalyzerGlobalSettings
instance anymore.

The Valgrind plugin is now using it, the memchecktool creates the settings for all
valgrind tools.

Change-Id: I3c5845ceb7151130032cfff4ab5b7b36ca2459d9
Reviewed-by: hjk <qthjk@ovi.com>

src/plugins/valgrind/memchecktool.cpp

@@ -298,7 +298,17 @@ QString MemcheckTool::displayName() const
 QString MemcheckTool::description() const
 {
     return tr("Valgrind Analyze Memory uses the \"memcheck\" tool to find "
-        "memory leaks");
+              "memory leaks");
+}
+
+AbstractAnalyzerSubConfig *MemcheckTool::createGlobalSettings()
+{
+    return new ValgrindGlobalSettings();
+}
+
+AbstractAnalyzerSubConfig *MemcheckTool::createProjectSettings()
+{
+    return new ValgrindProjectSettings();
 }
 
 IAnalyzerTool::ToolMode MemcheckTool::toolMode() const