Missing inverse for `LoadImageD` transform

[Nic-Ma]

Describe the bug
As the LoadImageD transform may convert input data and affine here:
https://github.com/Project-MONAI/MONAI/blob/master/monai/data/image_reader.py#L389
Need to support inverse operations.
Otherwise, we can't get proper results to compare with the input image if set as_closest_canonical=True.

[Nic-Ma]

Hi @rijobro ,

Could you please help take a look at this issue?
Our internal users found that we can't invert prediction properly if set as_closest_canonical=True.

Thanks in advance.

[wyli]

I feel we should use the Orientation transform to achieve this option, now the transform is also invertible