Improve statsdstats logging for pulled atoms

1. remove old statscompanion counters
2. add outgoing binder call fail counts
3. Add additional pull failure cases
 a. No pull uid provider (If a config doesn't register properly)
 b. Puller not found - either because it was not registered or because
the client did not specify the correct uids
4. Make metrics own logging pull delays - these were getting overcounted
since both the PullerManager and ValueMetricProducer were logging pull
delays.
5. Move noteEmptyPull to StatsPuller for more uniform logging, instead
of it just being logged in value metric producer.

Test: m statsd
Bug: 154056912
Change-Id: Ia373003905ee44d3b7b37b2bfa1e1d6268250070