* Add `kv rollback`
Like `kv patch` this is more of a helper than anything else; it provides
a single command to fetch the current version (for CAS), read the
version you want to roll back to, and set it as the new version (using
CAS for safety).
* Update kv command to use a preflight check
* Make the existing ui endpoint return the allowed mounts
* Add kv subcommand tests
* Enable `-field` in `vault kv get/put` (#4426)
* Enable `-field` in `vault kv get/put`
Fixes#4424
* Unify nil value handling
* Use preflight helper
* Update vkv plugin
* Add all the mount info when authenticated
* Add fix the error message on put
* add metadata test
* No need to sort the capabilities
* Remove the kv client header
* kv patch command (#4432)
* Fix test
* Fix tests
* Use permission denied instead of entity disabled
