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/0170-BlockDestroyEvent.patch

@@ -1,4 +1,4 @@
-From 9f28567e76a62262b1449dfd590d0d55846034ad Mon Sep 17 00:00:00 2001
+From 7bf842ef93db8eb174bdb610a2e0c796517746d4 Mon Sep 17 00:00:00 2001
 From: Aikar <aikar@aikar.co>
 Date: Wed, 6 Feb 2019 00:19:33 -0500
 Subject: [PATCH] BlockDestroyEvent
@@ -109,5 +109,5 @@ index 000000000..3aee12f1c
 +    }
 +}
 -- 
-2.25.1
+2.26.2