[Feature Request] More f_onserver commands

[canerksk]

	CScriptTriggerArgs Args(mode);
	g_Serv.r_Call("f_onserver_mode", &g_Serv, &Args);

	CScriptTriggerArgs SaveTryArgs(fForceImmediate, m_iSaveStage);
	g_Serv.r_Call("f_onserver_save_try", &g_Serv, &SaveTryArgs);

	CScriptTriggerArgs SaveStageArgs(m_iSaveStage);
	g_Serv.r_Call("f_onserver_save_stage", &g_Serv, &SaveStageArgs);

	CScriptTriggerArgs Args(bSave, m_iSaveStage);
	g_Serv.r_Call("f_onserver_save_force", &g_Serv, &Args);

	SimpleThreadLock lock(m_connectionMutex);
	g_Serv.r_Call("f_onserver_db_close", &g_Serv, nullptr);

g_Serv.r_Call("f_onserver_db_connect", &g_Serv, nullptr);

g_Serv.r_Call("f_onserver_db_close", &g_Serv, nullptr);

	CScriptTriggerArgs args;
	args.m_s1 = pszQuery;
	g_Serv.r_Call("f_onserver_db_execute", &g_Serv, &args);

		CScriptTriggerArgs args;
		args.m_s1 = pszQuery;
		g_Serv.r_Call("f_onserver_db_query", &g_Serv, &args);

The codes here are purely examples. Although many have been tested, some may need to be rewritten.