* add bundle registry service to avoid dependency cycles
* move user support bundle collector to user service
* move usage stat bundle implementation to usage stats
* add info for background service
* fix remaining imports
* whitespace
* move original stats service into a separate package
* add stats service to wire
* move GetAdminStats
* switch to using stats.Service
* add missing package
* fix api tests
Sofia Papagiannaki
Jo
Serge Zaitsev
Kristin Laemmert