Initial placeholderAPI support.

Give me ideas on what else to add and I'll add it.

src/main/java/com/massivecraft/factions/util/PlaceholderAPIManager.java

@@ -0,0 +1,31 @@
+package com.massivecraft.factions.util;
+
+import com.massivecraft.factions.FPlayer;
+import com.massivecraft.factions.FPlayers;
+import com.massivecraft.factions.P;
+import me.clip.placeholderapi.external.EZPlaceholderHook;
+import org.bukkit.entity.Player;
+
+public class PlaceholderAPIManager extends EZPlaceholderHook {
+
+    public PlaceholderAPIManager() {
+        super(P.p, "factionsuuid");
+    }
+
+    @Override
+    public String onPlaceholderRequest(Player player, String placeholder) {
+        if(player == null || placeholder == null) {
+            return "";
+        }
+
+        FPlayer fPlayer = FPlayers.getInstance().getByPlayer(player);
+        switch(placeholder) {
+            case "faction":
+                return fPlayer.getFaction().getTag();
+            case "power":
+                return String.valueOf(fPlayer.getPower());
+        }
+
+        return null;
+    }
+}