#134

#134

This can be used to inform callers that the operation is cancelled.

Check for operation status when streaming operations.
Allows client to catch a cancelled job.

Server is now stateless. Will help with #66.

Also move `bot_session` to simply `session`.

This will describe and in the future have the ability to monitor
hardware.

This will contain the information about a running task
and lease.

This will manage the Tenant objects.