moved deckmanager from AllZone to FModel, had to set lazy initialization due to CardDb late initialization.

set even better filter on draft and sealed folders

src/main/java/forge/model/FModel.java

@@ -35,6 +35,7 @@ import forge.ConstantStringArrayList;
 import forge.GameAction;
 import forge.Singletons;
 import forge.control.input.InputControl;
+import forge.deck.CardCollections;
 import forge.game.GameState;
 import forge.game.GameSummary;
 import forge.properties.ForgePreferences;
@@ -74,6 +75,9 @@ public enum FModel {
     private final QuestEventManager questEventManager;
     private final GameState gameState;
     private final FMatchState matchState;
+    
+    // have to implement lazy initialization - at the moment of FModel.ctor() CardDb is not ready yet. 
+    private CardCollections decks;
 
     /**
      * Constructor.
@@ -305,6 +309,16 @@ public enum FModel {
         return this.questEventManager;
     }
 
+    /**
+     * Returns all player's decks for constructed, sealed and whatever
+     * @return {@link forge.decks.CardCollections}
+     */
+    public final CardCollections getDecks() {
+        if (decks == null)
+            this.decks = new CardCollections(ForgeProps.getFile(NewConstants.NEW_DECKS));            
+        return decks;
+    }
+
     /**
      * Gets the game action model.
      *