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GH-37173: [C++][Go][Format] C-export/import Run-End Encoded Arrays (#37174)

### Rationale for this change

All array types should be C-exportable.

It uses `"+r"` as the format string. `+` because it's a nested format and `r` was not taken and seems like the obvious choice.

### What changes are included in this PR?

- [x] Ability to C-import/expor REE arrays.
- [x] Reference update

### Are these changes tested?

Yes.
* Closes: #37173

Lead-authored-by: Felipe Oliveira Carvalho <felipekde@gmail.com>
Co-authored-by: Matt Topol <zotthewizard@gmail.com>
Signed-off-by: Matt Topol <zotthewizard@gmail.com>