ZioTaskQueue

Implementation of the cancellable tasks queue using ZIO

Supported oprations:

• add task by key. Returns the task result. Locks fiber until result is ready.
• cancel task by key, supports label to identify the origin of the call. Returns the task cancellation result. Locks fiber until task is cancelled.
• join task by key. Returns join result. Locks fiber until result is ready.
• getRegisteredTaskKeys. Returns all keys of the tasks which are either in progress or registered for execution
• add_ and cancel_ : versions of the respective operations which ignore the results. Return without waiting for completion.

Completion result types:

• Done(result)
• Cancelled(origin)
• Failed(errors)
• Died(defects)
• Duplicate
• Rejected

Cancellation/Join result types:

• Done(result)
• Cancelled(origin)
• Failed(errors)
• Died(defects)
• NotFound