tickspeed server - client separation.

src/main/java/carpet/fakes/MinecraftServerInterface.java

@@ -3,6 +3,7 @@ package carpet.fakes;
 import java.util.Map;
 import java.util.function.BooleanSupplier;
 
+import carpet.helpers.TickRateManager;
 import carpet.script.CarpetScriptServer;
 import net.minecraft.core.RegistryAccess;
 import net.minecraft.resources.ResourceKey;
@@ -23,4 +24,6 @@ public interface MinecraftServerInterface
 
     void addScriptServer(CarpetScriptServer scriptServer);
     CarpetScriptServer getScriptServer();
+
+    TickRateManager getTickRateManager();
 }