Updated Upstream (Paper)

Upstream has released updates that appear to apply and compile correctly

patches/api/0018-Villager-resetOffers.patch

@@ -0,0 +1,24 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: William Blake Galbreath <blake.galbreath@gmail.com>
+Date: Mon, 7 Oct 2019 00:15:28 -0500
+Subject: [PATCH] Villager#resetOffers
+
+
+diff --git a/src/main/java/org/bukkit/entity/Villager.java b/src/main/java/org/bukkit/entity/Villager.java
+index 511b96841f7342d0a6b38d7cff56252ea8ef9bfe..0e2615b6e2be21abfb0116e6f1e02416bac97f74 100644
+--- a/src/main/java/org/bukkit/entity/Villager.java
++++ b/src/main/java/org/bukkit/entity/Villager.java
+@@ -113,6 +113,13 @@ public interface Villager extends AbstractVillager {
+      */
+     public void wakeup();
+ 
++    // Purpur start
++    /**
++     * Reset this villager's trade offers
++     */
++    public void resetOffers();
++    // Purpur end
++
+     /**
+      * Causes this villager to shake his head.
+      */