Removed spaces from top-level directory names.

Spaces tend to cause annoyances in a Unix-style shell environment.
This change fixes that.

84_Super_Star_Trek/csharp/Systems/LibraryComputer.cs

@@ -0,0 +1,47 @@
+using SuperStarTrek.Commands;
+using SuperStarTrek.Space;
+using SuperStarTrek.Systems.ComputerFunctions;
+
+namespace SuperStarTrek.Systems
+{
+    internal class LibraryComputer : Subsystem
+    {
+        private readonly Output _output;
+        private readonly Input _input;
+        private readonly ComputerFunction[] _functions;
+
+        internal LibraryComputer(Output output, Input input, params ComputerFunction[] functions)
+            : base("Library-Computer", Command.COM, output)
+        {
+            _output = output;
+            _input = input;
+            _functions = functions;
+        }
+
+        protected override bool CanExecuteCommand() => IsOperational("Computer disabled");
+
+        protected override CommandResult ExecuteCommandCore(Quadrant quadrant)
+        {
+            var index = GetFunctionIndex();
+            _output.NextLine();
+
+            _functions[index].Execute(quadrant);
+
+            return CommandResult.Ok;
+        }
+
+        private int GetFunctionIndex()
+        {
+            while (true)
+            {
+                var index = (int)_input.GetNumber("Computer active and waiting command");
+                if (index >= 0 && index <= 5) { return index; }
+
+                for (int i = 0; i < _functions.Length; i++)
+                {
+                    _output.WriteLine($"   {i} = {_functions[i].Description}");
+                }
+            }
+        }
+    }
+}