feat(nbstore): init (#7639)

TODO

- [x] basic
- [x] storages
- [x] producer/consumer
- [x] operation pattern
- [x] events
- [x] worker
- [x] readme
- [x] peer dependencies

packages/common/nbstore/src/index.ts

@@ -0,0 +1,2 @@
+export * from './connection';
+export * from './storage';