* Start work on passing context to backends
* More work on passing context
* Unindent logical system
* Unindent token store
* Unindent passthrough
* Unindent cubbyhole
* Fix tests
* use requestContext in rollback and expiration managers
* avoid race conditions in approle
* return a warning from role read if secondary index is missing
* Create a role ID index if a role is missing one
* Fix locking in approle read and add test
* address review feedback
Use the stored information to validate the source address and credential issue time.
Correct the logic used to verify BoundCIDRList on the role.
Reverify the subset requirements between secret ID and role during credential issue time.
