Minor changes and fixes around tick warping

When warping and frozen the game will now run at 20 (frozen) TPS instead of as fast as possible around a loop

Frozen ticks will no longer count towards tick warping

TPS logger will now display `TPS: 0.0` when the game is frozen

src/main/java/carpet/logging/HUDController.java

@@ -128,6 +128,9 @@ public class HUDController
     {
         double MSPT = Mth.average(server.tickTimes) * 1.0E-6D;
         double TPS = 1000.0D / Math.max((TickSpeed.time_warp_start_time != 0)?0.0:TickSpeed.mspt, MSPT);
+        if (TickSpeed.isPaused()) {
+            TPS = 0;
+        }
         String color = Messenger.heatmap_color(MSPT,TickSpeed.mspt);
         return new Component[]{Messenger.c(
                 "g TPS: ", String.format(Locale.US, "%s %.1f",color, TPS),