Add ctrl+v hotkey to be able copy the bounding boxes from the previous image to the current (#627)

* Add previous bounding boxes code

* Create method to avoid repeated code

* Fix text in the action copyprevbounding

* Add description for different languages

resources/strings/strings.properties

@@ -3,6 +3,7 @@ openFileDetail=Open image or label file
 quit=Quit
 quitApp=Quit application
 openDir=Open Dir
+copyPrevBounding=Copy previous Bounding Boxes in the current image 
 changeSavedAnnotationDir=Change default saved Annotation dir
 openAnnotation=Open Annotation
 openAnnotationDetail=Open an annotation file