fix: make shutdown down after finish opt-in

Make it opt-in so that e2e tests servers don't get shutdown after a tee finishes a map
fixes #3

src/engine/server/server.cpp

@@ -3048,7 +3048,7 @@ int CServer::Run()
 				break;
 			}
 
-			if(m_FinishTick != MIN_TICK && Config()->m_SvWaitUntilShutdownAfterFinish < (Tick() - m_FinishTick) / TickSpeed())
+			if(Config()->m_SvShutdownAfterFinish && m_FinishTick != MIN_TICK && Config()->m_SvWaitUntilShutdownAfterFinish < (Tick() - m_FinishTick) / TickSpeed())
 			{
 				str_copy(m_aShutdownReason, "GG! Thanks for playing and have a good one");
 				break;

src/engine/shared/config_variables.h

@@ -727,4 +727,5 @@ MACRO_CONFIG_INT(ClVideoRecorderFPS, cl_video_recorder_fps, 60, 1, 1000, CFGFLAG
 /*
  * Add config variables for mods below this comment to avoid merge conflicts.
  */
+MACRO_CONFIG_INT(SvShutdownAfterFinish, sv_shutdown_after_finish, 0, 0, 1, CFGFLAG_SERVER, "Time in seconds before the server will be shutdown after finishing the map")
 MACRO_CONFIG_INT(SvWaitUntilShutdownAfterFinish, sv_wait_until_shutdown_after_finish, 5, 0, 65536, CFGFLAG_SERVER, "Time in seconds before the server will be shutdown after finishing the map")

src/game/server/gamecontext.cpp

@@ -1308,7 +1308,7 @@ void CGameContext::OnTick()
 	// Warning: do not put code in this function directly above or below this comment
 	// Don't you ever dare to tell me what to not do
 
-	if(Server()->FinishTick() != 0)
+	if(Config()->m_SvShutdownAfterFinish && Server()->FinishTick() != 0)
 	{
 		float SecondsElapsed = (float)(Server()->Tick() - Server()->FinishTick()) / (float)Server()->TickSpeed();