* Update gopsutil to v3
* Adds v2 field names in host-info response to allow eventual deprecation in favor of v3 field names
* Map v3 to v2 field names to keep host-info api compat
* copy gopsutil license into source
* sys: add host-info endpoint, add client API method
* remove old commented handler
* add http tests, fix bugs
* query all partitions for disk usage
* fix Timestamp decoding
* add comments for clarification
* dont append a nil entry on disk usage query error
* remove HostInfo from the sdk api
We can use Logical().Read(...) to query this endpoint since the payload is contained with the data object. All warnings are preserved under Secret.Warnings.
* ensure that we're testing failure case against a standby node
* add and use TestWaitStandby to ensure core is on standby
* remove TestWaitStandby
* respond with local-only error
* move HostInfo into its own helper package
* fix imports; use new no-forward handler
* add cpu times to collection
* emit clearer multierrors/warnings by collection type
* add comments on HostInfo fields
