Build 471 is released.

1. Implemented FlexDim design for the Unet 2.5D segmentation network.

2. Dicom dialog box: implemented 2 options for working with "Combined Studies", so they can be copied

3. Fixed logic errors in "Enumerate Tree Items with Checked Ancestors". This was causing the problem of duplicated files when copying the DICOM subtree.

4. Removed the "Multiframe warning" from DICOM Tree to Folders function.