add instance_id generated at install time

[bmc-msft]

Summary of the Pull Request

Adds a randomly generated UUID that is unique to each install that is included in telemetry.

PR Checklist

• Applies to work item: Add a unique per-install GUID to telemetry #234
• CLA signed. If not, go over here and sign the CLI.
• Tests added/passed
• Requires documentation to be updated
• I've discussed this with core contributors already. If not checked, I'm ready to accept this work might be rejected in favor of a different grand plan. Issue number where discussion took place: #xxx

Info on Pull Request

This adds an instance_id that is generated at install time, and add it to the supervisor and agent configs to be used if telemetry is enabled.

NOTE: Including a per-install randomly generated UUID as an instance ID was approved during the initial internal privacy review.

Validation Steps Performed

Standard integration tests