Add missing imports to pipelines.ts

Author: MarkDuckworth

packages/firestore/lite/pipelines/pipelines.ts

@@ -44,7 +44,8 @@ export type {
   SetOptions,
   QueryDocumentSnapshot,
   Primitive,
-  FieldValue
+  FieldValue,
+  Bytes
 } from '../index';
 
 export { PipelineSource } from '../../src/lite-api/pipeline-source';

packages/firestore/pipelines/pipelines.ts

@@ -44,7 +44,8 @@ export type {
   SnapshotOptions,
   Primitive,
   FieldValue,
-  SnapshotMetadata
+  SnapshotMetadata,
+  Bytes
 } from '../src/api';
 
 export * from '../src/api_pipelines';