Ops to replace Fiji Stack_Manipulation plugins

[fiji/Stack_Manipulation](https://github.com/fiji/Stack_Manipulation/tree/master/src/main/java) is a set of plugins that do basic stuff to slices, e.g. removing, sorting, interleaving and de-interleaving.

The functionality is so generic as to warrant an Op in core ImageJ. It could perhaps be extended to work in any image dimension, or several at once - you could for example 'implode' an image around an _xyzt_ (or any subset of those dimensions) bounding box to remove pixels within the limits set.

The [Kálmán filter](https://github.com/fiji/Stack_Manipulation/blob/master/src/main/java/Kalman_Filter.java) included in Stack_Manipulation doesn't fit there and should rather go into a dedicated Kálmán filtering Op.

Start by reviewing the linked Stack_Manipulation source under src/main/java, including Kalman_Filter.java, to inventory the existing plugin behavior. Determine which slice operations can be represented as core ImageJ Ops and whether multidimensional support is in scope; the work is done only when the replacement Ops and the separate Kalman filtering Op have agreed behavior and coverage.

Written by the indexing model from the issue text.