Jobs in an Org should only use Inventories from that Org

Even if you place a job in a specific organization, you can still use inventories from other organizations in that job. This is pretty counter-intuitive when trying to encapsulate different departments.

Additonally, it would be nice to manage SSH credentials directly on the inventories, not on the jobs. It would be easier to manage scenarios when tou want to run the same job with different machines which have different SSH keys.