x/ref: Restructure debug,logreader,pprof,repository,stats,vtrace.

services/mgmt/debug          -> services/debug/debuglib/dispatcher.go
services/mgmt/logreader/impl -> services/logreader/logreaderlib
services/mgmt/pprof/impl     -> services/pprof/pproflib
services/mgmt/pprof/client   -> services/pprof/pproflib
services/mgmt/repository     -> services/repository
services/mgmt/stats          -> services/stats
services/mgmt/stats/impl     -> services/stats/statslib
services/mgmt/vtrace/impl    -> services/vtrace/vtracelib

Change-Id: I3dadc6ff0c07330a16d6db281bf7ed034bc9c45f
48 files changed