Updated Upstream (Bukkit/CraftBukkit)

Upstream has released updates that appears 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:
b999860d SPIGOT-2304: Add LootGenerateEvent

CraftBukkit Changes:
77fd87e4 SPIGOT-2304: Implement LootGenerateEvent
a1a705ee SPIGOT-5566: Doused campfires & fires should call EntityChangeBlockEvent
41712edd SPIGOT-5707: PersistentDataHolder not Persistent on API dropped Item

Spigot-API-Patches/0128-AnvilDamageEvent.patch

@@ -1,4 +1,4 @@
-From e80d7db6426808f73ae20e5cc2ef3e3badf9d617 Mon Sep 17 00:00:00 2001
+From c46be2703c06acabbaa89b5a7dbcd5674a5b9664 Mon Sep 17 00:00:00 2001
 From: BillyGalbreath <Blake.Galbreath@GMail.com>
 Date: Fri, 20 Jul 2018 23:36:55 -0500
 Subject: [PATCH] AnvilDamageEvent
@@ -159,5 +159,5 @@ index 000000000..a83c286c1
 +    }
 +}
 -- 
-2.25.1
+2.26.2