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/settings.cpp

@@ -33,6 +33,9 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include <cctype>
 #include <algorithm>
 
+static Settings main_settings;
+Settings *g_settings = &main_settings;
+std::string g_settings_path;
 
 Settings::~Settings()
 {