Add API to get the collision shape of a block before it's placed (#9821)

* Add API to get the collision shape of a block before it's placed

* Tweak API documentation

* Clarify behavior

* Rebase

* Rebase

patches/api/0443-Add-API-to-get-the-collision-shape-of-a-block-before.patch

@@ -0,0 +1,31 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: TrollyLoki <trollyloki@gmail.com>
+Date: Wed, 11 Oct 2023 00:45:54 -0400
+Subject: [PATCH] Add API to get the collision shape of a block before it's
+ placed
+
+
+diff --git a/src/main/java/org/bukkit/block/data/BlockData.java b/src/main/java/org/bukkit/block/data/BlockData.java
+index 31111cea5ffd018c3c011c1f3b8befbbd33db5e5..66903e0fa65052ede789a163dad723ba05a2cc8c 100644
+--- a/src/main/java/org/bukkit/block/data/BlockData.java
++++ b/src/main/java/org/bukkit/block/data/BlockData.java
+@@ -204,6 +204,19 @@ public interface BlockData extends Cloneable {
+      */
+     boolean isFaceSturdy(@NotNull BlockFace face, @NotNull BlockSupport support);
+ 
++    // Paper start
++    /**
++     * Calculates the collision shape this block data would have at a particular location.
++     * <p>
++     * This does not take into account any block updates that may occur if the block was to be actually placed in the world.
++     *
++     * @param location the location to calculate the collision shape at
++     *
++     * @return a {@link org.bukkit.util.VoxelShape} representing the collision shape of this block data.
++     */
++    @NotNull org.bukkit.util.VoxelShape getCollisionShape(@NotNull Location location);
++    // Paper end
++
+     /**
+      * Gets the material that a player would use to place this block.
+      * <p>