Updated Upstream (Bukkit/CraftBukkit/Spigot)

Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
810cb078 Add hideEntity / showEntity API

CraftBukkit Changes:
04f8e7e2 SPIGOT-6814: (Chunk) PersistentData is lost after restart
37fd1917 Add hideEntity / showEntity API
7e2214da Move checkstyle to slightly later compile phase
45c3f826 SPIGOT-6816: Fix ChunkSnapshot#getBiome

Spigot Changes:
b11f318f Rebuild patches
622b2310 SPIGOT-6811: Fix mob spawning mismatch
2b2a3d56 Rebuild patches

patches/server/0039-Implement-PlayerLocaleChangeEvent.patch

@@ -30,10 +30,10 @@ index 88b6be62678fc09b5a39db28c6d71cc31b16dbcd..352bfe795aea26307de9c998d67a43af
          this.locale = packet.language;
          // Paper start
 diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
-index a41590739e22feb4aebfd7192ebd1f77868dc07c..2766b773ed255e3172ed52a3fb37d18f6f46999b 100644
+index 4fb53ca63cc4f5fbb58266d5c76821039036bb85..acce8810b2aeb991f738396830cfb2fd8c2ad1fe 100644
 --- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
 +++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
-@@ -1779,8 +1779,10 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
+@@ -1800,8 +1800,10 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
  
      @Override
      public String getLocale() {