Add Server#isGlobalTickThread

This method should be present in Paper, not just in Folia, given
that the GlobalRegionScheduler is present.

Additonally, add Server#isOwnedByCurrentRegion(World, int, int, int, int)
for checking of a rectangle of chunks is owned by the current region.

patches/api/API-to-check-if-the-server-is-sleeping.patch

@@ -10,7 +10,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +++ b/src/main/java/org/bukkit/Server.java
 @@ -0,0 +0,0 @@ public interface Server extends PluginMessageRecipient, net.kyori.adventure.audi
       */
-     boolean isOwnedByCurrentRegion(@NotNull Entity entity);
+     public boolean isGlobalTickThread();
      // Paper end - Folia region threading API
 +
 +    // Paper start - API to check if the server is sleeping