RunConfigurationAspects: Move method to create config widget

Move the method used to create a config widget for a
RunConfigurationAspect from the RunControlFactory into the aspect
itself. This allows for aspects that are not bound to any factory,
which is what I eventually want to use to hold the environment for
run configurations.

Change-Id: Icceb5f44ca9eb63a87b9c7bb6468ff30dab943c2
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>

src/plugins/projectexplorer/runconfiguration.cpp

@@ -104,6 +104,12 @@ bool ProcessHandle::equals(const ProcessHandle &rhs) const
 }
 
 
+RunConfigWidget *IRunConfigurationAspect::createConfigurationWidget()
+{
+    return 0;
+}
+
+
 /*!
     \class ProjectExplorer::RunConfiguration
     \brief  Base class for a run configuration. A run configuration specifies how a
@@ -396,11 +402,6 @@ IRunConfigurationAspect *IRunControlFactory::createRunConfigurationAspect(RunCon
     return 0;
 }
 
-RunConfigWidget *IRunControlFactory::createConfigurationWidget(RunConfiguration *)
-{
-    return 0;
-}
-
 /*!
     \class ProjectExplorer::RunControl
     \brief Each instance of this class represents one item that is run.