Resolved #3963 #3971
This change adds a new interface: StorageInitializationInterface which is used by SessionArrayStorage to populate the RequestAccessTime.
Merge pull request #3993 from mwillbanks/hotfix/session-storage-initialization

SessionArrayStorage Request Access Time and Storage Initialization
Merge branch 'hotfix/3993'

Close #3993
Fixes #3963
Fixes #3971