This now uses different record fields, and for now we no longer have CAF
telemetry. We indicate we're running under test to get reliable ordering in the
baselined output.
Adds base/frameworks/telemetry with wrappers around telemetry.bif
and updates telemetry/Manager to support collecting metrics from
script land.
Add policy/frameworks/telemetry/log for logging of metrics data
into a new telemetry.log and telemetry_histogram.log and add into
local.zeek by default.
