Use flow-go Components for composing

[janezpodhostnik]

Closes: onflow/flow-go#6776
Depends on: onflow/flow-go#6769

Description

Use flow-go component model and node framework to compose the Gatway and handle shutdown.

Main advantage is that the re-use of the component management system from flow-go automatically gives us nicer error handling an resource closing on error. To use the error handling, just make sure to use irrecoverable.SignalerContext.Throw(err) for any unexpected error. This will start the shutdown procedure and properly release all resources.

Changes:

• api/profiler.go is now a component
• api/server.go is now a component
• bootstrap/bootstrap.go is changed a lot and is modeled after flow-go ExecutionNodeBuilder
• bootstrap/utils.go were moved into services/requester/key_store_component.go which is a component that handles the keystore. It should have a Close for the KMS client, but the KMS client is currently not a io.Closer (which should be addresses)
• cmd/run/cmd.go was simplified because the startup logic is now actually in flow-go
• models/engine.go was removed because its no longer needed
• models/stream.go was converted into a component. This lets it force shutdown the gateway in case of an error in Notify
• services/ingestion/engine.go is now component. In case of errors in events processing it shuts down the node.

This depends on onflow/flow-go#6769

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• Linked to Github issue with discussion and accepted design OR link to spec that describes this work.
• Code follows the standards mentioned here.
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