Ref T180, dot commands to set rendering setup

* enable parts/debug messages via dot command
* allow to log to console via application context

src/blackgui/guiapplication.cpp

@@ -62,6 +62,7 @@ using namespace BlackMisc::Network;
 using namespace BlackGui::Components;
 using namespace BlackCore;
 using namespace BlackCore::Data;
+using namespace BlackCore::Context;
 
 BlackGui::CGuiApplication *sGui = nullptr; // set by constructor
 
@@ -732,6 +733,14 @@ namespace BlackGui
         return true;
     }
 
+    void CGuiApplication::onCoreFacadeStarted()
+    {
+        if (this->supportsContexts())
+        {
+            connect(this->getIContextApplication(), &IContextApplication::requestDisplayOnConsole, this, &CGuiApplication::displayTextInConsole);
+        }
+    }
+
     void CGuiApplication::checkNewVersion(bool onlyIfNew)
     {
         if (!m_installDialog)

src/blackgui/guiapplication.h

@@ -224,6 +224,9 @@ namespace BlackGui
         //! Handle parsing of special GUI cmd arguments
         virtual bool parsingHookIn() override;
 
+        //! \copydoc BlackCore::CApplication::onCoreFacadeStarted
+        virtual void onCoreFacadeStarted() override;
+
         //! Check for a new version (update)
         void checkNewVersion(bool onlyIfNew);