package factory generates function set of ring.func.* with different default paramaters.

• There must be a default configuration provider not to hold every default values functions by functions.
• A default default configuraiton will be provided as global namespace which will be same as now - @ring.* which is exposed attributes of default package factory
• Each package factory can be a replacement of global @ring, like @dryrun.lru or @dryrun.memcache

Not sure this is package factory or environment or configuration or something else at this stage.