Add action attempts

[razor-x]

• Represent in blueprint similar to events
• Connect endpoint response to action attempt type

[razor-x]

@andrii-balitskyi We need to find a way for the endpoint response in blueprint to indicate what action attempt type it returns. We could annotate it in the yaml on the endpoint, but is there a way we can handle this automatically from the route spec?

[andrii-balitskyi]

@razor-x I can't think of another way to compute the action attempt type from the endpoint's route spec other than annotating it in the route spec's description front matter.

[andrii-balitskyi]

@razor-x Should we express this endpoint relation using something like responseActionAttemptType in endpoint.response?

[razor-x]

@razor-x Should we express this endpoint relation using something like responseActionAttemptType in endpoint.response?

Yes, but just actionAttemptType should be fine