telemetry: introduce orb-telemetry crate and use it in orb-ui

[TheButlah]

we should in general be using journald for our logs, not stdout. Also, we should use stderr instead of stdout.

Every one of our crates sets up logging in a different way, but they all do the same thing. I wanted to introduce a single spot that lets us configure our telemetry. If it goes well in orb-ui, we can use it in all the rest too