Proper Disposing of Timer in Caret Class

[itinerant-fox]

WpfHexEditorControl/Sources/WPFHexaEditor/Core/Caret.cs

Line 256 in 880b8ba

_timer = null;

The above timer is not being correctly disposed. I think it needs to first unsubscribe the event handler and then dispose the Timer object. Instead it is just set as null. I noticed this because I keep getting TaskCancelled Exception on BlinkCaret() when exiting the application.
Do you think this should be so or am I missing something else?

[abbaye]

Yes I think you have reasons.

I can correct this or if you want put a pull request :)

[abbaye]

Corrected ;)