execution in the pool; an execution added to the pool with a first step
of PrepareAndRunWorkflow will be enqueued in a capability queue instead
of going to the execution pool; some other schema changes and small
interface fixes

event can have; its values correspond to the capability step that would
await that event

# Conflicts:
#	shared/workspaces/src/workspaces/schema.py
#	shared/workspaces/src/workspaces/services.py

Add Capo profile for serviceUrls for capability and workflow. Advance on getting capability_launcher working.

object and create a request from there

capability_launcher to test sending requests