* chore: CFR double column sample
Federal Regulations document for example notebook in `examples/custom-layout-order`
* chore: custom-layout-order example dir
* feat: helper methods to plot and reorder layouts
Helper methods: `plot_image_with_bounding_boxes_coloured` and `reorder_elements_in_double_columns`
* chore: delete __init__.py
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Co-authored-by: Benjamin Torres <benjats07@users.noreply.github.com>
