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/0150-Add-ItemStackRecipeChoice-Draft-API.patch

@@ -1,4 +1,4 @@
-From 3fda3c194e7401c8a71415625cd66b7c9fa8dbc1 Mon Sep 17 00:00:00 2001
+From 6c31e06baa1fd1383189f4bc8a52e504ee19373b Mon Sep 17 00:00:00 2001
 From: Aikar <aikar@aikar.co>
 Date: Thu, 13 Sep 2018 21:39:26 -0400
 Subject: [PATCH] Add ItemStackRecipeChoice Draft API
@@ -65,5 +65,5 @@ index 000000000..43e6576b1
 +    }
 +}
 -- 
-2.25.1
+2.26.2