fix(StoreDevtools): Do not send full liftedState on simple actions.

[timblakely]

A number of users have reported significant slowdown when using store-devtools. Slowdowns were more noticeable with larger states and larger values of maxAge.

• Performance Issues with Dev Tools + Router-Store #97
• Optimize ngrx/store-devtools zalmoxisus/redux-devtools-extension#314
• performance is slow when dealing with large data set store-devtools#45
• Site gets really slow after a few dispatches to the store store-log-monitor#18

It appears that @ngrx/store-devtools currently sends the full lifted state to the extension, which requires serializing not just the current state but all previous states that have not been committed. With this change, only the current action and state snapshots are serialized during normal app actions. When app state is recomputed, a full liftedState update is sent.

Note: Also requires optionally propagating maxAge into ReduxDevtoolsExtension.connect.

[MikeRyanDev]

🔥

Thank you for the PR! I'll get this reviewed and tested quickly.

[coveralls]

Coverage decreased (-0.4%) to 92.616% when pulling fd77d3d on timblakely:optimize_devtools_extension_updates into c8560e4 on ngrx:master.