[1.16] Make it run (#3626)

* She compiles!

Also readded the armorstand ticking patch, thanks cat

* Update mob goal api

* Misc fixes to make it run

drop per playing mob spawns for now

Spigot-Server-Patches/Implement-Chunk-Priority-Urgency-System-for-Chunks.patch

@@ -587,8 +587,8 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
      private int lastFoodSent = -99999999;
      private boolean lastSentSaturationZero = true;
 @@ -0,0 +0,0 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
+         this.canPickUpLoot = true;
          this.maxHealthCache = this.getMaxHealth();
-         this.cachedSingleMobDistanceMap = new com.destroystokyo.paper.util.PooledHashSets.PooledObjectLinkedOpenHashSet<>(this); // Paper
      }
 +    // Paper start
 +    public BlockPosition getPointInFront(double inFront) {
@@ -1069,8 +1069,8 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +    }
 +    // Paper end
  
-     public void updatePlayerMobTypeMap(Entity entity) {
-         if (!this.world.paperConfig.perPlayerMobSpawns) {
+     private static double getDistanceSquaredFromChunk(ChunkCoordIntPair chunkPos, Entity entity) { return a(chunkPos, entity); } // Paper - OBFHELPER
+     private static double a(ChunkCoordIntPair chunkcoordintpair, Entity entity) {
 @@ -0,0 +0,0 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
          List<CompletableFuture<Either<IChunkAccess, PlayerChunk.Failure>>> list = Lists.newArrayList();
          int j = chunkcoordintpair.x;