Add initial menu system

EvilSatellites/Menu/MenuContainer.cs

@@ -9,5 +9,19 @@ namespace EvilSatellites.Menu
     public class MenuContainer
     {
         public List<MenuEntry> Entries;
+        public string Title;
+        public string Description;
+        public MenuContainer(string title, string description)
+        {
+            Entries = new List<MenuEntry>();
+            Title = title;
+            Description = description;
+        }
+
+        public MenuContainer Add(MenuEntry entry)
+        {
+            Entries.Add(entry);
+            return this;
+        }
     }
 }

EvilSatellites/Menu/MenuEntry.cs

@@ -9,5 +9,11 @@ namespace EvilSatellites.Menu
     public class MenuEntry
     {
         public string Name;
+        public string Description;
+        public MenuEntry(string name, string description = "")
+        {
+            Name = name;
+            Description = description;
+        }
     }
 }