Peer for generating bloom filters will be able to use ranged loop.
As an addition some cleanup were made:
* remove unused parts of GC BF peer (identity, version control)
* added missing Close method for ranged loop service
* some additional tests added
https://github.com/storj/storj/issues/5545
Change-Id: I9a3d85f5fffd2ebc7f2bf7ed024220117ab2be29