pkg clients moved from pkg

clients/client.go

clients/errors.go

clients/events.go

clients/middleware/access_logging_middleware.go

clients/middleware/caching_middleware.go

clients/middleware/caching_middleware_test.go

clients/middleware/error_logging_middleware.go

clients/middleware/logging_middleware.go

clients/middleware/middleware.go

clients/middleware/recovering_middleware.go

clients/middleware/telemetry_middleware.go

clients/mocks/Clients.go

clients/mocks/Middleware.go

clients/mocks/Storage.go

clients/service.go

clients/storage.go

clients/transport/client.go

clients/transport/endpoints.microgen.go

clients/transport/exchanges.microgen.go

clients/transport/grpc/client.go