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/0419-Add-event-for-player-editing-sign.patch

@@ -0,0 +1,81 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: by77er <by77er@gmail.com>
+Date: Sat, 10 Jun 2023 19:06:24 -0400
+Subject: [PATCH] Add event for player editing sign
+
+
+diff --git a/src/main/java/io/papermc/paper/event/player/PlayerOpenSignEvent.java b/src/main/java/io/papermc/paper/event/player/PlayerOpenSignEvent.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..4f81a6dbe6694d40f27445f5d17aed48ad75498a
+--- /dev/null
++++ b/src/main/java/io/papermc/paper/event/player/PlayerOpenSignEvent.java
+@@ -0,0 +1,69 @@
++package io.papermc.paper.event.player;
++
++import org.bukkit.block.Sign;
++import org.bukkit.block.sign.Side;
++import org.bukkit.entity.Player;
++import org.bukkit.event.Cancellable;
++import org.bukkit.event.HandlerList;
++import org.bukkit.event.player.PlayerEvent;
++import org.jetbrains.annotations.NotNull;
++
++/**
++ * Called when a player begins editing a sign's text.
++ * <p>
++ * Cancelling this event stops the sign editing menu from opening.
++ */
++public class PlayerOpenSignEvent extends PlayerEvent implements Cancellable {
++    private static final HandlerList HANDLER_LIST = new HandlerList();
++    private boolean cancel = false;
++    @NotNull private final Sign sign;
++    @NotNull private final Side side;
++
++    public PlayerOpenSignEvent(@NotNull Player editor, @NotNull Sign sign, @NotNull Side side) {
++        super(editor);
++        this.sign = sign;
++        this.side = side;
++    }
++
++    /**
++     * Gets the sign that was clicked.
++     *
++     * @return {@link Sign} that was clicked
++     */
++    @NotNull
++    public Sign getSign() {
++        return sign;
++    }
++
++    /**
++     * Gets which side of the sign was clicked.
++     *
++     * @return {@link Side} that was clicked
++     * @see Sign#getSide(Side)
++     */
++    @NotNull
++    public Side getSide() {
++        return side;
++    }
++
++    @Override
++    public boolean isCancelled() {
++        return cancel;
++    }
++
++    @Override
++    public void setCancelled(boolean cancel) {
++        this.cancel = cancel;
++    }
++
++    @NotNull
++    @Override
++    public HandlerList getHandlers() {
++        return HANDLER_LIST;
++    }
++
++    @NotNull
++    public static HandlerList getHandlerList() {
++        return HANDLER_LIST;
++    }
++}