New option for orientation filter

[Carlo Didier]

Using the filter panel to filter by orientation is not aware of the use of visual proxies.
Example: A raw file was shot in landscape orientation, but cropped to a vertical composition (or square), which is what the visual proxy for that file looks like. But, filtering on landscape orientation will let this file appear, although I would expect it under a vertical orientation.

I understand that for some it might be desirable to have the filter only look at the orientation of the original, but if you look for a final version of the images, as shown by the proxies, you would prefer to have the orientation of the proxy used for the filter.
Also, having appear images in the seamingly wrong orientation with the filter migh cause confusion and make a user think something is wrong with the filter.

So, I would like to have the option to make the filter look at the visual proxy for orientation filtering instead of the original file.