Remove go-micro

[dragonchaser]

We should remove go-micro from opencloud.

• Stores: (replace by native nats-js-kv)

  • services/activitylog
  • opencloud/pkg/l10n.go
  • pkg/natsjsregistry/{options, registry.go}.go
  • pkg/roles/{manager, option}.go
  • services/invitations/pkg/service/v0 (so far only WIP in Guest user invite #2440)
  • services/notififcations/pkg/service/service.go
  • ...

• GRPC (use grpc native grpc implementation)

  • pkg/service/grpc/{client,option}.go
  • pkg/sservices/grpc/handler/ratelimiter/ratelimiter.go
  • pkg/service/grpc/service.go
  • pkg/service/http/service.go
  • ...

• others & plugins (determine replacement, if necessary)

  • pkg/broker/noop.go
  • pkg/crypto/gencert.go
  • pkg/log/log.go
  • okg/middleware/account.go
  • pkg/natsjsregistry/{watcher,registry}.go
  • pkg/registry/service.go
  • pkg/roles/util.go
  • pkg/service/grpc/client.go
  • pkg/service/grpc/service.go
  • pkg/service/http/service.go
  • services/notififcations/pkg/service/service.go
  • services/ocs/pkg/config/config.go
  • services/proxy/pkg/config/config.go
  • services/thumbnails/config/config.go
  • services/webdav/config/config.go
  • ...

• related tickets:

  • nats as service registry is redundant #1409