pkg schema moved from pkg

pkg/collections/collection.go

pkg/collections/marshal.go

pkg/collections/marshal_test.go

pkg/collections/middleware/access_logging_middleware.go

pkg/collections/middleware/caching_middleware.go

pkg/collections/middleware/caching_middleware_test.go

pkg/collections/middleware/logging_middleware.go

pkg/collections/middleware/recovering_middleware.go

pkg/collections/middleware/telemetry_middleware.go

pkg/collections/mocks/Collections.go

pkg/collections/service.go

pkg/collections/transport/client.go

pkg/collections/transport/exchanges.microgen.go

...tions/transport/grpc/protobuf_type_converters.microgen.go

...ivery/transport/grpc/protobuf_type_converters.microgen.go

pkg/extension/extension.go

pkg/extension/extension_test.go

pkg/extension/schema_test.go

pkg/files/field.go

pkg/files/field_test.go