Adjusted init'ing logic to defer to project settings for the name of the play gui and mainMenu gui instead of hardcoding them

Engine/source/module/moduleManager.cpp

@@ -191,6 +191,8 @@ bool ModuleManager::scanModules( const char* pPath, const bool rootOnly )
         return false;
     }
 
+    Torque::FS::sgMountSystem;
+
     // Fetch extension length.
     const U32 extensionLength = dStrlen( mModuleExtension );