We need to report the current version, but it's only available as a
link-time variable in the main package. Since we can't import this
without incurring the wrath of the Go compiler's no-circular dependency
rule, we need to pull this down through the agent.
Adds the enterprise service to the agent's boot process. A few
placeholders have been added because it's not quite clear how we should
generate ProductIDs and ClusterIDs for Telegraf