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/0176-Add-PlayerPostRespawnEvent.patch

@@ -1,4 +1,4 @@
-From a90ff87559e325bf8f1ccc43abf89a5206dfc4e1 Mon Sep 17 00:00:00 2001
+From 599500e51a5fd023124affa7212c4fd9d34ae2b6 Mon Sep 17 00:00:00 2001
 From: MisterVector <whizkid3000@hotmail.com>
 Date: Fri, 26 Oct 2018 21:33:13 -0700
 Subject: [PATCH] Add PlayerPostRespawnEvent
@@ -63,5 +63,5 @@ index 000000000..31f34b548
 +    }
 +}
 -- 
-2.25.1
+2.26.2