Add Minimal FastUtil int/long collections.

Importing the full library would double the jar size... its way too large.
So lets just import the basic int/long based collections to then use
to improve performance on these kind of collections.

Spigot-API-Patches/0005-Add-getTPS-method.patch

@@ -0,0 +1,46 @@
+From f41ba48d012b47e2ea11fae6e58e595e93ba47e1 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Mon, 29 Feb 2016 17:24:57 -0600
+Subject: [PATCH] Add getTPS method
+
+
+diff --git a/src/main/java/org/bukkit/Bukkit.java b/src/main/java/org/bukkit/Bukkit.java
+index 85fd9a8..8d602a3 100644
+--- a/src/main/java/org/bukkit/Bukkit.java
++++ b/src/main/java/org/bukkit/Bukkit.java
+@@ -1140,6 +1140,14 @@ public final class Bukkit {
+     }
+ 
+     /**
++     * Gets the current server TPS
++     * @return current server TPS (1m, 5m, 15m in Paper-Server)
++     */
++    public static double[] getTPS() {
++        return server.getTPS();
++    }
++
++    /**
+      * @see UnsafeValues
+      * @return the unsafe values instance
+      */
+diff --git a/src/main/java/org/bukkit/Server.java b/src/main/java/org/bukkit/Server.java
+index f82cbaf..6e23b0c 100644
+--- a/src/main/java/org/bukkit/Server.java
++++ b/src/main/java/org/bukkit/Server.java
+@@ -934,6 +934,13 @@ public interface Server extends PluginMessageRecipient {
+     BossBar createBossBar(String title, BarColor color, BarStyle style, BarFlag ...flags);
+ 
+     /**
++     * Gets the current server TPS
++     *
++     * @return current server TPS (1m, 5m, 15m in Paper-Server)
++     */
++    public double[] getTPS();
++
++    /**
+      * @see UnsafeValues
+      * @return the unsafe values instance
+      */
+-- 
+2.8.0
+