Expose server build information (#10729)

* Expose server build information

* squash patches

* final tweaks

---------

Co-authored-by: Jake Potrebic <jake.m.potrebic@gmail.com>
Co-authored-by: masmc05 <masmc05@gmail.com>

patches/api/0170-Entity-getEntitySpawnReason.patch

@@ -0,0 +1,29 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Sun, 24 Mar 2019 00:21:23 -0400
+Subject: [PATCH] Entity#getEntitySpawnReason
+
+Allows you to return the SpawnReason for why an Entity Spawned
+
+Pre existing entities will return NATURAL if it was a non
+persistenting Living Entity, SPAWNER for spawners,
+or DEFAULT since data was not stored.
+
+Co-authored-by: Aurora <aurora@relanet.eu>
+
+diff --git a/src/main/java/org/bukkit/entity/Entity.java b/src/main/java/org/bukkit/entity/Entity.java
+index f1fc42ad24648ee481b9a5d4c4cc58ae8c0a93c1..66716da0b475524917d4153e481100b795ea11a9 100644
+--- a/src/main/java/org/bukkit/entity/Entity.java
++++ b/src/main/java/org/bukkit/entity/Entity.java
+@@ -853,5 +853,11 @@ public interface Entity extends Metadatable, CommandSender, Nameable, Persistent
+         // TODO remove impl here
+         return getLocation().getChunk();
+     }
++
++    /**
++     * @return The {@link org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason} that initially spawned this entity. <!-- Paper - added "initially" to clarify that the SpawnReason doesn't change after the Entity was initially spawned" -->
++     */
++    @NotNull
++    org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason getEntitySpawnReason();
+     // Paper end
+ }