implemented api for diff annotations

scm-ui-components/packages/ui-components/src/repos/index.js

@@ -1,5 +1,20 @@
 // @flow
+import * as diffs from "./diffs";
+export { diffs };
 
 export * from "./changesets";
+
 export { default as Diff } from "./Diff";
 export { default as LoadingDiff } from "./LoadingDiff";
+
+export type {
+  File,
+  FileChangeType,
+  Hunk,
+  Change,
+  BaseContext,
+  AnnotationFactory,
+  AnnotationFactoryContext,
+  DiffEventHandler,
+  DiffEventContext
+} from "./DiffTypes";