Updated Upstream (Bukkit/CraftBukkit/Spigot) (#6457)

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:
c9a46ebf #653: Add World#spawn with randomizeData parameter
e49c2e3a Damageable should extend ItemMeta
01ff04f4 SPIGOT-5880, SPIGOT-5567: New ChunkGenerator API
ca5b4b1a SPIGOT-6697: Deprecate generateTree with BlockChangeDelegate as it does not handle tiles

CraftBukkit Changes:
7c8bbcbe SPIGOT-6716: Preserve the order of stored enchantments of enchanted books.
18027d02 #914: Add World#spawn with randomizeData parameter
3cad0316 SPIGOT-6714: Don't fire PlayerBucketEvent when empty
8c6d60cf Fix server crash with BlockPopulator when entities are at a negative chunk border
4f6bcc84 SPIGOT-5880, SPIGOT-5567: New ChunkGenerator API
78d5b35b SPIGOT-6697: Restore generateTree with BlockChangeDelegate behaviour
15792f0d Rebuild patch
c949675e SPIGOT-6713: Cancelling EntityTransformEvent Causes Deceased Slimes To Not Despawn
a955f15c Fix issues with new ChunkGenerator API
a0a37f41 SPIGOT-6630: Replacing an enchantment on an item creates a conflict error

Spigot Changes:
b166a49b Rebuild patches
3c1fc60a SPIGOT-6693: Composters only take in one item at custom hopper speeds

patches/api/0220-Add-moon-phase-API.patch

@@ -47,10 +47,10 @@ index 0000000000000000000000000000000000000000..df05153397b42930cd53d37b30824c7e
 +    }
 +}
 diff --git a/src/main/java/org/bukkit/World.java b/src/main/java/org/bukkit/World.java
-index 10c22809535b6151b45aa18a02b80b8f2e3e6dff..27d97cde0fb5f6d727656c291e34dc468200f0c0 100644
+index 823ac73c8bb30b142a51ed25858b7f3449bf8c83..a805cb95e0695a0729e083ea0995a1ef02b3724f 100644
 --- a/src/main/java/org/bukkit/World.java
 +++ b/src/main/java/org/bukkit/World.java
-@@ -70,6 +70,12 @@ public interface World extends PluginMessageRecipient, Metadatable, net.kyori.ad
+@@ -68,6 +68,12 @@ public interface World extends RegionAccessor, WorldInfo, PluginMessageRecipient
       * @return The amount of Players in this world
       */
      int getPlayerCount();