Add `write trace` CLI command

[zalegrala]

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What this PR does:

Here we include a tempo-cli write trace command that was useful in producing a large trace for debugging limits.

Checklist

• [ ] Tests updated
• [ ] Documentation added
• [ ] CHANGELOG.md updated - the order of entries should be [CHANGE], [FEATURE], [ENHANCEMENT], [BUGFIX]

[knylander-grafana]

Should write trace be added to the CLI page? https://github.com/grafana/tempo/blob/main/docs/tempo/website/operations/tempo_cli.md

[zalegrala]

I believe this is going to require a bump of the opentelementry-proto submodule before the make vendor-check will pass. The alternative is to use an older version of the exporter, but I like that idea less.

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