Move cog utilities from examples to core

COG utilities are of potential interest to clients (RF, for instance), so it will be exposed within core

Histogram sampling fix

Merge pull request #46 from moradology/feature/0.0.6

Bump to version 0.0.6

http4s 0.19 + fs2 1.0

Bumped a couple of dependencies to more stable versions

Bump fs2 and http4s

Move to cats-effect 1.0.0(!) and bump http4s/fs2 as necessary

Bump MAML dependency

Merge pull request #32 from moradology/feature/maml-0.0.17

Bump MAML dependency to sync versions

Synchronizing Cats Deps

This PR brings Cats-related dependencies up to the 1.0 release