Add config for allowing Endermen to despawn even while holding a block

This should help to reduce the amount of dirt, gravel, grass, and etc. that Endermen like to randomly place all over the world.

purpur-server/minecraft-patches/sources/net/minecraft/world/entity/monster/EnderMan.java.patch

@@ -8,6 +8,15 @@
          } else {
              boolean flag = damageSource.getDirectEntity() instanceof ThrownPotion;
              if (!damageSource.is(DamageTypeTags.IS_PROJECTILE) && !flag) {
+@@ -440,7 +_,7 @@
+ 
+     @Override
+     public boolean requiresCustomPersistence() {
+-        return super.requiresCustomPersistence() || this.getCarriedBlock() != null;
++        return super.requiresCustomPersistence() || (!this.level().purpurConfig.endermanDespawnEvenWithBlock && this.getCarriedBlock() != null); // Purpur - Add config for allowing Endermen to despawn even while holding a block
+     }
+ 
+     static class EndermanFreezeWhenLookedAt extends Goal {
 @@ -484,6 +_,7 @@
  
          @Override