Add option to export the view via CLI
Adds the option autoExportView|-autoexportview outputFile
to PeTrack, such that the view, e.g., the undistorted can be exported directly via CLI.
Example execution:
petrack -project project.pet -autoExportView exported_view.avi
Note: _When testing, use a small video file, as currently the avi file get quite large! Will be solved in #246 (closed) _
Closes #245 (closed)