moved menu and party mode files to the new lib

VocaluxeLib/Menu/SongMenu/ISongMenu.cs

@@ -0,0 +1,43 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+using Vocaluxe.PartyModes;
+
+namespace Vocaluxe.Menu.SongMenu
+{
+    interface ISongMenu : IMenuElement
+    {
+        void Update();
+        void OnShow();
+        void OnHide();
+
+        void HandleInput(ref KeyEvent KeyEvent, ScreenSongOptions SongOptions);
+        void HandleMouse(ref MouseEvent MouseEvent, ScreenSongOptions SongOptions);
+        void Draw();
+
+        void ApplyVolume(float VolumeMax);
+
+        int GetSelectedSong();
+        CStatic GetSelectedSongCover();
+        void SetSelectedSong(int VisibleSongNr);
+
+        bool IsActive();
+        void SetActive(bool Active);
+
+        int GetSelectedCategory();
+        void SetSelectedCategory(int CategoryNr);
+        int GetActualSelection();
+
+        bool IsSelected();
+        void SetSelected(bool Selected);
+
+        bool IsVisible();
+        void SetVisible(bool Visible);
+
+        bool IsSmallView();
+        void SetSmallView(bool SmallView);
+
+        SRectF GetRect();
+    }
+}