Add tab for deployment history

[lukebond]

The data is available in the orchestrator API but needs to be displayed in the UI so we can see a history of everything the scheduler has deployed, in a table showing date/time, service name, version.

[jemgold]

Is it this one? https://github.com/paz-sh/paz-orchestrator/blob/master/docs/api-blueprint.md#config-history-servicesnameconfighistory

[lukebond]

Actually what I'm referring to doesn't really exist yet (just realised!).

On each deploy a record is written to the database but it isn't really sorted in a way that is useful for this use-case.

Created paz-sh/paz-scheduler#10 and paz-sh/paz-scheduler#11

Will also require an endpoint to be added to the orchestrator.