Updated Upstream (Bukkit/CraftBukkit)

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:
218294b1 PR-743: Support setting individual Wither head targets

CraftBukkit Changes:
d48f2d1a PR-1047: Support setting individual Wither head targets
518f1bee SPIGOT-6948: Motion from Explosion after Respawn
f3c7a6ac SPIGOT-7019: Add yaw in World#getSpawnLocation

patches/server/0675-Missing-Entity-Behavior-API.patch

@@ -564,12 +564,12 @@ index 2ba16e33dd21c3c72cb12244aa78c59bf53e76d1..634a5099fb6faea03615783f57e643ad
  
      @Override
 diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftWither.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftWither.java
-index 640b0860fbe3412da32d03187e6f355ba8f099ea..299d5e47489cfe489ac130a33a08cdb29ba76d72 100644
+index e92355fa2042c4cf15354a11b7058cacbe996f0d..4cf3a374c9ee7c7bcf82e778aa094eb4f8463595 100644
 --- a/src/main/java/org/bukkit/craftbukkit/entity/CraftWither.java
 +++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftWither.java
-@@ -38,4 +38,31 @@ public class CraftWither extends CraftMonster implements Wither, com.destroystok
-     public BossBar getBossBar() {
-         return this.bossBar;
+@@ -61,4 +61,31 @@ public class CraftWither extends CraftMonster implements Wither, com.destroystok
+         Entity target = this.getHandle().getLevel().getEntity(entityId);
+         return (target != null) ? (LivingEntity) target.getBukkitEntity() : null;
      }
 +
 +    // Paper start