Updated Upstream (Bukkit/CraftBukkit) (#8430)

Upstream has released updates that appear 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:
09943450 Update SnakeYAML version
5515734f SPIGOT-7162: Incorrect description for Entity#getVehicle javadoc
6f82b381 PR-788: Add getHand() to all relevant events

CraftBukkit Changes:
aaf484f6f SPIGOT-7163: CraftMerchantRecipe doesn't copy demand and specialPrice from BukkitMerchantRecipe
5329dd6fd PR-1107: Add getHand() to all relevant events
93061706e SPIGOT-7045: Ocelots never spawn with babies with spawn reason OCELOT_BABY

patches/server/0356-Add-ThrownEggHatchEvent.patch

@@ -0,0 +1,27 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: William Blake Galbreath <blake.galbreath@gmail.com>
+Date: Sun, 9 Feb 2020 00:19:05 -0600
+Subject: [PATCH] Add ThrownEggHatchEvent
+
+Adds a new event similar to PlayerEggThrowEvent, but without the Player requirement
+(dispensers can throw eggs to hatch them, too).
+
+diff --git a/src/main/java/net/minecraft/world/entity/projectile/ThrownEgg.java b/src/main/java/net/minecraft/world/entity/projectile/ThrownEgg.java
+index 4e083dcd07e5975c7379035e72ac2f3469e919fd..77941e3981e49cf5662b3e3c86a9c419080b17c8 100644
+--- a/src/main/java/net/minecraft/world/entity/projectile/ThrownEgg.java
++++ b/src/main/java/net/minecraft/world/entity/projectile/ThrownEgg.java
+@@ -77,6 +77,14 @@ public class ThrownEgg extends ThrowableItemProjectile {
+                     hatchingType = event.getHatchingType();
+                 }
+ 
++                // Paper start
++                com.destroystokyo.paper.event.entity.ThrownEggHatchEvent event = new com.destroystokyo.paper.event.entity.ThrownEggHatchEvent((org.bukkit.entity.Egg) getBukkitEntity(), hatching, b0, hatchingType);
++                event.callEvent();
++
++                b0 = event.getNumHatches();
++                hatching = event.isHatching();
++                hatchingType = event.getHatchingType();
++                // Paper end
+                 if (hatching) {
+                     for (int i = 0; i < b0; ++i) {
+                         Entity entity = level.getWorld().createEntity(new org.bukkit.Location(level.getWorld(), this.getX(), this.getY(), this.getZ(), this.getYRot(), 0.0F), hatchingType.getEntityClass());