[chronojump] Continuation of last commit but also closes camera capture

[Xavier de Blas <xaviblas src gnome org>]

commit a775f91b5c491eb000ea029c3a32fabfd93bea69
Author: Xavier de Blas <xaviblas gmail com>
Date:   Tue Jun 25 14:24:16 2019 +0200

    Continuation of last commit but also closes camera capture

 src/gui/chronojump.cs | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/src/gui/chronojump.cs b/src/gui/chronojump.cs
index 22425c30..87182ebb 100644
--- a/src/gui/chronojump.cs
+++ b/src/gui/chronojump.cs
@@ -2203,6 +2203,10 @@ public partial class ChronoJumpWindow
                        currentEventExecute.Cancel = true;
                        LogB.Information("Done!");
 
+                       LogB.Information("Closing camera if opened...");
+                       ExecuteProcess.KillExternalProcess 
(WebcamFfmpeg.GetExecutableCapture(UtilAll.GetOSEnum()));
+                       LogB.Information("Done!");
+
                        //do not need this, above cancelling is enough
                        //currentEventExecute.ThreadAbort();
                }