Introduce LifecycleState type and UPDATE_LIFECYCLE_STATE action

Summary: Added LifecycleState and UPDATE_LIFECYCLE to set stage for converting foreground:boolean to lifecycleState:LifecycleState

Test Plan: Flow and things work as they did before on iOS.

Reviewers: ashoat, palys-swm

Reviewed By: ashoat

Subscribers: KatPo, zrebcu411, Adrian, subnub

Differential Revision: https://phabricator.ashoat.com/D871