Complete test coverage for new scripts added to bundle
platform/telemetry in support of autoflow tabular views,
WTD-614. Specifically, these implement a telemetrySubscriber
service which can be used to watch for updates to telemetry
values associated with a specific domain object.
Move spec for formatting of telemetry values from the
plot bundle to the telemetry bundle, to reflect its
exposure as a reusable service exposed by that bundle.
WTD-599.
