add denoising option when exporting images

[Benjamin Knorlein]

add Aarons denoising when exporting images

[Stephen Gatesy]

Sorry didn’t see that denoising issue was the same as my filtering issue enhancement request. I’d rate the issue as major as we undistort images more than most XROMM users.

[Benjamin Knorlein]

fixes #197 : Added an option to denoise images to the trial dialog. The new images can be directly relinked to the trial

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