Black box: the queries of the user's train worked out once a read, lights as the driver checks them

- The stations, the signals passed, the horn points, the couplings, the
  consists and the timetable progress of the user's train are kept until
  a read adds something; the views asked for them every frame, which on
  a long session with many trains took the window down. A read that adds
  nothing no longer counts as a change.
- The lights are checked against the lamps the vehicles at the ends have
  (written by the simulator from now on), as its driver checks them: Pc 1
  without the upper headlight, with the auxiliary lamps, Pc 5 with the
  rear-end signals. Only while the user drives: the autopilot's lights
  are its own.
- A train off the platform counts at both ends: its head past the stop
  point as well as its tail before the platform's end.
- A recording without the couplings keeps the timetable for any vehicle
  of the user.
- A signal passed at danger is ringed on the map only once it was.
- In the tapes window a black box opens on a click or Enter, not when
  the arrow keys go over it.
- The viewer's screenshot of a window not laid out saves nothing and
  still closes.

StarterNG.Tests/BlackBox/BlackBoxFile.cs

@@ -108,7 +108,7 @@ internal sealed class BlackBoxFile
                             float target = 40, float nextLimit = -1, float nextDistance = -1, float brakeCylinder = 0,
                             uint devices = 0x0007, bool extended = true, sbyte cabEnd = 1, byte security = 0,
                             float lateral = 0.2f, ushort lightsHead = 0x15, ushort lightsTail = 0x22, byte? movement = null,
-                            short hintHead = -1, short hintTail = -1) =>
+                            short hintHead = -1, short hintTail = -1, ushort? equippedHead = null, ushort? equippedTail = null) =>
         Record(0x20, w =>
         {
             w.Write(time);
@@ -154,6 +154,12 @@ internal sealed class BlackBoxFile
                     w.Write(kind);
                     w.Write(hintHead);
                     w.Write(hintTail);
+                    // the lamps the vehicles at the ends have: a recording made before them ends above
+                    if (equippedHead is { } head)
+                    {
+                        w.Write(head);
+                        w.Write(equippedTail ?? head);
+                    }
                 }
             }
         });