Fix incorrect new blockdata in EntityChangeBlockEvent (#9445)

Also fixes EntityBreakDoorEvent not having the correct 'to' block data

Also standardizes how to handle EntityChangeBlockEvent before a removeBlock or destroyBlock
call. Always use 'state.getFluidState().createLegacyBlock()' to get the new state instead of
just using the 'air' state.

patches/api/0386-Add-entity-knockback-API.patch

@@ -0,0 +1,28 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: MelnCat <melncatuwu@gmail.com>
+Date: Sun, 16 Oct 2022 12:10:00 -0700
+Subject: [PATCH] Add entity knockback API
+
+
+diff --git a/src/main/java/org/bukkit/entity/LivingEntity.java b/src/main/java/org/bukkit/entity/LivingEntity.java
+index 930c328880708cea182ccb031d31305e7d1c529b..14854e1325d61d0112cc928c8a5a92a8a45249d3 100644
+--- a/src/main/java/org/bukkit/entity/LivingEntity.java
++++ b/src/main/java/org/bukkit/entity/LivingEntity.java
+@@ -1107,5 +1107,17 @@ public interface LivingEntity extends Attributable, Damageable, ProjectileSource
+             this.swingOffHand();
+         }
+     }
++
++    /**
++     * Knocks back this entity from a specific direction with a specified strength. Mechanics such
++     * as knockback resistance will be factored in.
++     *
++     * The direction specified in this method will be the direction of the source of the knockback,
++     * so the entity will be pushed in the opposite direction.
++     * @param strength The strength of the knockback. Must be greater than 0.
++     * @param directionX The relative x position of the knockback source direction
++     * @param directionZ The relative z position of the knockback source direction
++     */
++    void knockback(double strength, double directionX, double directionZ);
+     // Paper end
+ }