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/0123-EntityTransformedEvent.patch

@@ -1,4 +1,4 @@
-From 98308b2255a82eae37913639b9505bd99b72b53f Mon Sep 17 00:00:00 2001
+From 6951e644dd75d4299f00deddba74e92daafebb66 Mon Sep 17 00:00:00 2001
 From: Anthony MacAllister <anthonymmacallister@gmail.com>
 Date: Thu, 26 Jul 2018 15:28:53 -0400
 Subject: [PATCH] EntityTransformedEvent
@@ -103,5 +103,5 @@ index 000000000..12194f1fc
 +    }
 +}
 -- 
-2.25.1
+2.26.2