Maptick lag minimization port (#12066)

* extools.dll

* backend

* queued pipenet builds

* oh yeah we don't have that

* wow

* Update air.dm

code/game/world.dm

@@ -8,6 +8,8 @@ GLOBAL_LIST(topic_status_cache)
 //This happens after the Master subsystem new(s) (it's a global datum)
 //So subsystems globals exist, but are not initialised
 /world/New()
+	if(fexists("byond-extools.dll"))
+		call("byond-extools.dll", "maptick_initialize")()
 	enable_debugger()
 
 	world.Profile(PROFILE_START)