Image-analysis-util

To update to Version 0.1.2, run `pip install image-analysis-util==0.1.2`

Added

* `SlicingTab` widget to take arbitrary slices of any DataArray, giving users to ability to explore 1D line cuts from any 2D, 3D, or 4D DataArray.
* Manual controls for every `SlicingROI`.

To update to Version 0.1.1, run `pip install image-analysis-util==0.1.1`

Changed

* DataArray dimension controls changed to "drag-and-drop".

To update to Version 0.1.0, run `pip install image-analysis-util==0.1.0`

Added

* I/O function `create_iau_file` that converts VTI (VTK Image Data) file(s) into an IAU file.
* I/O function `load_iau_file` that creates an xarray DataArray from an IAU file.
* `ImageTool` widget that displays 2D, 3D, and 4D xarray DataArrays.