[C++] Dictionary support for ordering-based compute functions.

[coady]

Describe the enhancement requested

Follow-up to #36772. With dictionary array sorting implemented, the other ordering functions are unsupported: select_k_unstable, min, and max.

Component(s)

C++

[R-JunmingChen]

Hi, I can implement min and max for dictionary array.

[thisisnic]

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