Add server oversleep to timings (#2509)

Now everything except waiting for the next tick should be included
in timings

Spigot-Server-Patches/Optimize-Hoppers.patch

@@ -47,7 +47,7 @@ index c69a067ef1..1e23d77e72 100644
          itemstack.d(this.C());
          if (this.tag != null) {
 diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
-index 2acb71fa8a..0d690fc8e1 100644
+index 6f410ca921..c075780674 100644
 --- a/src/main/java/net/minecraft/server/MinecraftServer.java
 +++ b/src/main/java/net/minecraft/server/MinecraftServer.java
 @@ -0,0 +0,0 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas