Implement World#regenerateChunk (#7425)

Co-authored-by: Jason Penilla <11360596+jpenilla@users.noreply.github.com>

patches/api/0365-Implement-regenerateChunk.patch

@@ -0,0 +1,21 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Nassim Jahnke <jahnke.nassim@gmail.com>
+Date: Sat, 5 Feb 2022 20:25:28 +0100
+Subject: [PATCH] Implement regenerateChunk
+
+
+diff --git a/src/main/java/org/bukkit/World.java b/src/main/java/org/bukkit/World.java
+index c808cc8dc96e325c543391048414880ed18a3ed3..7d2873a924ee81411a2a00bace0f58403fec43ea 100644
+--- a/src/main/java/org/bukkit/World.java
++++ b/src/main/java/org/bukkit/World.java
+@@ -505,8 +505,8 @@ public interface World extends RegionAccessor, WorldInfo, PluginMessageRecipient
+      * @return Whether the chunk was actually regenerated
+      *
+      * @deprecated regenerating a single chunk is not likely to produce the same
+-     * chunk as before as terrain decoration may be spread across chunks. Use of
+-     * this method should be avoided as it is known to produce buggy results.
++     * chunk as before as terrain decoration may be spread across chunks. It may
++     * or may not change blocks in the adjacent chunks as well.
+      */
+     @Deprecated
+     public boolean regenerateChunk(int x, int z);