Sentry: setup user after config init so that we can sent the authkey

include/TSentry.h

@@ -14,6 +14,7 @@ public:
     ~TSentry();
 
     void PrintWelcome();
+    void SetupUser();
     void Log(sentry_level_t level, const std::string& logger, const std::string& text);
     void AddExtra(const std::string& key, const sentry_value_t& value);
     void AddExtra(const std::string& key, const std::string& value);