Add NotificationsBridgeQueue module

Summary:
This differential defines and implements NotificationsBridgeQueue module that will be used in CommIOSNotifications implementation to store JS-related events and actions before JS thread is ready. Code is copy-pasted from Ashoat's RNNotifications fork.
Ashoat's fork: https://github.com/Ashoat/react-native-notifications

Test Plan: Build the app.

Reviewers: atul, tomek, ashoat

Reviewed By: tomek, ashoat

Subscribers: ashoat

Differential Revision: https://phab.comm.dev/D6065