First stages home screen architecture update (will not affect build at all, should probably be a branch).

.gitattributes

@@ -11214,6 +11214,7 @@ src/main/java/forge/control/home/ControlQuest.java -text
 src/main/java/forge/control/home/ControlSealed.java -text
 src/main/java/forge/control/home/ControlSettings.java -text
 src/main/java/forge/control/home/ControlUtilities.java -text
+src/main/java/forge/control/home/IControlSubmenu.java -text
 src/main/java/forge/control/home/package-info.java -text svneol=native#text/plain
 src/main/java/forge/control/input/Input.java svneol=native#text/plain
 src/main/java/forge/control/input/InputAttack.java svneol=native#text/plain
@@ -11335,6 +11336,7 @@ src/main/java/forge/model/BuildInfo.java -text
 src/main/java/forge/model/FMatchState.java svneol=native#text/plain
 src/main/java/forge/model/FModel.java svneol=native#text/plain
 src/main/java/forge/model/MultipleForgeJarsFoundError.java -text
+src/main/java/forge/model/home/MenuGroup.java -text
 src/main/java/forge/model/package-info.java svneol=native#text/plain
 src/main/java/forge/package-info.java svneol=native#text/plain
 src/main/java/forge/properties/ForgePreferences.java svneol=native#text/plain
@@ -11410,6 +11412,7 @@ src/main/java/forge/view/bazaar/ViewStall.java svneol=native#text/plain
 src/main/java/forge/view/bazaar/package-info.java svneol=native#text/plain
 src/main/java/forge/view/editor/package-info.java svneol=native#text/plain
 src/main/java/forge/view/home/ConstructedDeckSelectPanel.java -text
+src/main/java/forge/view/home/IViewSubmenu.java -text
 src/main/java/forge/view/home/QuestFileLister.java -text
 src/main/java/forge/view/home/QuestPreferencesHandler.java -text
 src/main/java/forge/view/home/StartButton.java -text

src/main/java/forge/control/home/IControlSubmenu.java

@@ -0,0 +1,16 @@
+package forge.control.home;
+
+import forge.Command;
+import forge.view.home.IViewSubmenu;
+
+/** Dictates methods required for a submenu controller. */
+public interface IControlSubmenu {
+    /** @return {@link forge.command} */
+    Command getCommand();
+
+    /** @return {@link forge.view.home.IViewSubmenu} */
+    IViewSubmenu getView();
+
+    /** Update whatever content is in the panel. */
+    void update();
+}

src/main/java/forge/model/home/MenuGroup.java

@@ -0,0 +1,15 @@
+package forge.model.home;
+
+/** 
+ * Submenus each belong to a menu group, which
+ * is used for several functions, such as expanding
+ * and collapsing in the menu.
+ */
+public enum MenuGroup { /** */
+    CONSTRUCTED, /** */
+    SEALED, /** */
+    DRAFT, /** */
+    QUEST, /** */
+    SETTINGS, /** */
+    UTILITIES;
+}

src/main/java/forge/view/home/IViewSubmenu.java

@@ -0,0 +1,22 @@
+package forge.view.home;
+
+import javax.swing.JPanel;
+
+import forge.control.home.IControlSubmenu;
+import forge.model.home.MenuGroup;
+
+/** Dictates methods required for a submenu view. */
+public interface IViewSubmenu {
+    /** @return {@link forge.control.home.IControlSubmenu} */
+    IControlSubmenu getControl();
+
+    /** Allows static factory creation by decoupling UI components.
+     * @return {@link javax.swing.JPanel} */
+    JPanel getPanel();
+
+    /** Returns parent menu grouping of this submenu, useful for
+     * functions such as expanding and collapsing in the menu area.
+     * 
+     * @return {@link javax.swing.JPanel} */
+    MenuGroup getGroup();
+}