Add Starlark script for outputting Line Protocol shape...for sizing

[samhld]

Required for all PRs:

• Associated README.md updated.
• Has appropriate unit tests.

[telegraf-tiger]

Thanks so much for the pull request!
🤝 ✒️ Just a reminder that the CLA has not yet been signed, and we'll need it before merging. Please sign the CLA when you get a chance, then post a comment here saying !signed-cla

[srebhan]

@samhld how is this PR different from #8675?

[samhld]

@srebhan should be good to go now!

[srebhan]

Please remove the commented code.

Furthermore, you drop the original metric, is this correct?

[samhld]

@srebhan Removed commented code. The intention was to drop the original metric, yes. That's up for debate currently, however :). For now, it's fine.

[srebhan]

@samhld please add at least a comment in the example that the original metric is dropped. Furthermore, your expected values and the actual output of the script diverge. Please check what's going on here and fix one or the other.

[samhld]

Ugh, they didn't use to. I'll have to investigate why this happened.

[samhld]

I know why -- will re-commit fix shortly!

[samhld]

@srebhan Ok gtg

[srebhan]

Fine with me.