Updated Upstream (Bukkit/CraftBukkit)

Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
1e843b72 #510: Add NamespacedKey#fromString() to fetch from user input
a4d18241 #581: Add methods to modify despawn delay for wandering villagers

CraftBukkit Changes:
0cd8f19f #802: Add methods to modify despawn delay for wandering villagers
d5c5d998 SPIGOT-6362: ConcurrentModificationException: null --> Server Crash
8c7d69fe SPIGOT-5228: Entities that are removed during chunk unloads are not properly removed from the chunk.

Spigot-Server-Patches/0356-Chunk-debug-command.patch

@@ -203,7 +203,7 @@ index f0a836db74ad3e20778d3863223bc9a35ff4ad41..e4719a5e7e5ebd91257a9c9b83fa1ada
       * Ported from MinecraftForge - author: LexManos <LexManos@gmail.com> - License: LGPLv2.1
       */
 diff --git a/src/main/java/net/minecraft/server/ChunkProviderServer.java b/src/main/java/net/minecraft/server/ChunkProviderServer.java
-index 90812ab056acc39e62a43cb208bfd782e2a0c1b7..ac706ac98cdfb1b0c754cd4941cf1d9996f530d7 100644
+index b6ec5d0f281bac483f210fd8c45a8965cd97cc02..534bcc215b0efb8561f7489f01fe49d34cba4c4f 100644
 --- a/src/main/java/net/minecraft/server/ChunkProviderServer.java
 +++ b/src/main/java/net/minecraft/server/ChunkProviderServer.java
 @@ -24,7 +24,7 @@ import org.apache.logging.log4j.Logger;
@@ -417,7 +417,7 @@ index 816d55b17ea531bc2f25b92c003b127fe6e04112..2507bdf7bfa65f1bc728a46322d2a570
 +    }
  }
 diff --git a/src/main/java/net/minecraft/server/PlayerChunk.java b/src/main/java/net/minecraft/server/PlayerChunk.java
-index 32da5cfc19793afa2053c8e2a37fdcf17e43e6cd..f2cd43a449b8a474dcfad735239d54678fce2d13 100644
+index f6b83ced48aa649bbd58a9b8a8dfe460b961bc22..2c73bc1151d5d87ce6eac3f778ebff9c555b0212 100644
 --- a/src/main/java/net/minecraft/server/PlayerChunk.java
 +++ b/src/main/java/net/minecraft/server/PlayerChunk.java
 @@ -29,7 +29,7 @@ public class PlayerChunk {