Provide the NVIDIA DCGM

**What I'd like:**
Provide the NVIDIA DCGM and likely the exporter, as some downstreams are either packaging it already or planning to do so.

**Any alternatives you've considered:**
Ask the downstreams to package the DCGM exporter themselves.

Review the core kit's existing package definitions and packaging workflow first; the issue names no files, tests, or entry points. Determine how downstreams currently package NVIDIA DCGM and its exporter, then confirm that the requested components are provided by the kit.

Written by the indexing model from the issue text.