Restructure PaperSpigot as a new set of modules

Allows us much greater control over the Spigot portion of the code
and makes us more "proper"
Credit to @Dmck2b for originally passing the idea along a while back

Bukkit-Patches/0025-Add-Score.isScoreSet-Z-API.patch

@@ -0,0 +1,29 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: md_5 <git@md-5.net>
+Date: Thu, 17 Apr 2014 19:35:13 +1000
+Subject: [PATCH] Add Score.isScoreSet()Z API.
+
+
+diff --git a/src/main/java/org/bukkit/scoreboard/Score.java b/src/main/java/org/bukkit/scoreboard/Score.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/scoreboard/Score.java
++++ b/src/main/java/org/bukkit/scoreboard/Score.java
+@@ -0,0 +0,0 @@ public interface Score {
+      */
+     void setScore(int score) throws IllegalStateException;
+ 
++    // Spigot start
++    /**
++     * Shows if this score has been set at any point in time.
++     * 
++     * @return if this score has been set before
++     * @throws IllegalStateException if the associated objective has been
++     *     unregistered
++     */
++    boolean isScoreSet() throws IllegalStateException;
++    // Spigot end
++
+     /**
+      * Gets the scoreboard for the associated objective.
+      *
+--