Minify Kernel

**Is your feature request related to a problem or challenge? Please describe what you are trying to do.**

Often people want to store arrow data in memory, and in some cases are potentially willing to pay a premium for reduced memory usage.

Currently various array types can have "bloated" memory footprints, for example:

* Arrays can be sliced, with potentially unreferenced data buffers and child arrays
* Dictionaries can contain duplicate entries
* View arrays can contain unreferenced data

**Describe the solution you'd like**

I would like to propose a minify kernel in arrow-select that allows performing this minification. It should take a non-exhaustive/build-pattern `MinifyOptions` struct to allow controlling how this logic is performed. Ideally it would be possible to move the logic that currently resides in the IPCWriter over to use this kernel.

**Describe alternatives you've considered**

**Additional context**