Add Schema Validation and Examples to CI

[ricardozanini]

Many thanks for submitting your Pull Request ❤️!

Please specify parts of this PR update:

• Specification
• Schema
• Examples
• Extensions
• Roadmap
• Use Cases
• Community
• TCK
• Other

Discussion or Issue link:

#794

What this PR does / why we need it:

• Add all the examples from examples/README.md file to separate files, so external tooling can now import them and run for tests
• Add a Node.js application to verify our schemas against those examples
• Add a GitHub Action to run in every PR to verify if the examples are valid to the Schemas

Open a new PR:

• Add the properties field to each separate definition so we enable single validation. For example, functions.json should be able to serve as a single schema definition.

Special notes for reviewers:
@JBBianchi After merging this one, we can then add the git post-hook to have an updated README file.

Additional information:
Now we have an application to maintain :)
I'm not a Node.js/Typescript specialist, so if there's something to improve, please let me know in the review.

[JBBianchi]

Regarding the TS, I think it's small enough not to bother too much. Just for informative purposes, I created a fork to use async/await, it might be better than using blocking apis and more "readable" or "accessible" to some, but not very important.

For the rest, LGTM ! Great work as usual @ricardozanini ! ❤️

[ricardozanini]

@JBBianchi So I can expect a PR soon coming here upgrading this code base + post-hook/templating README? :D

[JBBianchi]

@JBBianchi So I can expect a PR soon coming here upgrading this code base + post-hook/templating README? :D

Yes, with pleasure, I'll do as soon as than one is merged.

[ricardozanini]

@cdavernas can you take a look? I'll open a second PR to actually solve #794.

[cdavernas]

Didn't check it all, but I had a good overview and looks great to me!

Thanks for your awesome work @ricardozanini !

[ricardozanini]

Has been two weeks since the introduction of this PR and we have two votes for merging. I think we can go ahead @cdavernas

[cdavernas]

@ricardozanini Agreed, as per code of conduct.