Limit CF_OnUpdate rate for perf boost (#130)

* Limit CF_OnUpdate rate for perf boost

CF_OnUpdate loop is fairly expensive especially on server. Limit update rate to 25 ms on server and 5 ms on client. Significant performance boost was observed when many modules are using update loops (e.g. COT gained 10% tick rate increase on server with this change).

* Removed rate limit on client, fixed missing var

* Add define

* `timeslice` is inaccurate, use GetIickTime so modules can do accurate time measurement

* Defines moved to config.cpp

JM/CF/Scripts/5_Mission/CommunityFramework/Mission/MissionBase.c

@@ -1,5 +1,9 @@
 modded class MissionBase
 {
+#ifdef SERVER
+	float m_CF_UpdateTime;
+#endif
+
 	protected bool m_bLoaded = false;
 
 	void MissionBase()
@@ -19,17 +23,35 @@ modded class MissionBase
 
 	void CF_OnUpdate(float timeslice)
 	{
-		if (g_Game.IsLoading())
+#ifdef SERVER
+		float updateTime = GetGame().GetTickTime();
+		float elapsed = updateTime - m_CF_UpdateTime;
+		bool update = elapsed >= 0.025;
+
+		if (update)
 		{
-			return;
+			m_CF_UpdateTime = updateTime;
 		}
+#endif
 
 		if (!m_bLoaded)
 		{
+			if (g_Game.IsLoading())
+			{
+				return;
+			}
+
 			m_bLoaded = true;
 			OnMissionLoaded();
 		}
 
+#ifdef SERVER
+		if (update)
+		{
+			CF_ModuleGameManager.OnUpdate(this, new CF_EventUpdateArgs(elapsed));
+		}
+#else
 		CF_ModuleGameManager.OnUpdate(this, new CF_EventUpdateArgs(timeslice));
+#endif
 	}
 };