1319062 - Add a batching action creator and reducer to Redux shared components

Status: NEW

(DevTools :: Shared Components, defect)

Description

[Jarda Snajdr [:jsnajdr]]

Both console.html and netmonitor.html use a batching module that contains:
- action creator that allows to dispatch an array of actions as one batch
- reducer that processes the batch and produces a single state update

This is useful to reduce the number of state updates triggered by the store and improve React rendering performance.

The code is almost identical to this:
https://github.com/tshelburne/redux-batched-actions

Move the code to a shared component in devtools/client/shared/redux.