Provide support of HotKeys to manage thumbnails and corresponding EVE clients - implemented w/o GUI required to set hotkeys

Eve-O-Preview/UI/Interface/IThumbnailView.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Drawing;
+using System.Windows.Forms;
 
 namespace EveOPreview.UI
 {
@@ -24,6 +25,9 @@ namespace EveOPreview.UI
 		void ZoomIn(ViewZoomAnchor anchor, int zoomFactor);
 		void ZoomOut();
 
+		void RegisterHotkey(Keys hotkey);
+		void UnregisterHotkey();
+
 		void Refresh(bool forceRefresh);
 
 		Action<IntPtr> ThumbnailResized { get; set; }