Move globals from main.cpp to more sane locations

Move debug streams to log.cpp|h

Move GUI-related globals to clientlauncher

Move g_settings and g_settings_path to settings.cpp|h

Move g_menuclouds to clouds.cpp|h

Move g_profiler to profiler.cpp|h

src/clouds.h

@@ -24,6 +24,14 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include <iostream>
 #include "constants.h"
 
+// Menu clouds
+class Clouds;
+extern Clouds *g_menuclouds;
+
+// Scene manager used for menu clouds
+namespace irr{namespace scene{class ISceneManager;}}
+extern irr::scene::ISceneManager *g_menucloudsmgr;
+
 class Clouds : public scene::ISceneNode
 {
 public: