Add event id on notification response

[renatomassaro]

Most importantly is how we've achieved this:

• [x] Implementation of the top-level event macro
• [x] Implementation of the top-level notify macro
• [x] Refactor of all events to use the new format

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Incidental:

• Enhancements on events & API from Bank, Account
• Top-level process macro at Helix.Process

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This change is 

[sourcelevel-bot[bot]]

Ebert has finished reviewing this Pull Request and has found:

• 2 possible new issues (including those that may have been commented here).
• 2 fixed issues! 🎉

You can see more details about this review at https://ebertapp.io/github/HackerExperience/Helix/pulls/294.

[renatomassaro]

Reviewed 97 of 97 files at r1. Review status: all files reviewed at latest revision, all discussions resolved.

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