Add implementation jsonapi-metal-client.

[masterT]

Add Javascript and Typescript client jsonapi-metal-client.

[jelhan]

Thanks a lot for working on that library and proposing it for the implementation page. The library seems to be very new. If I saw it right, initial v0.0.1 release was just fine a few days ago. I'm wondering if we want to wait a little bit until it got more stable.

Please only add it to JavaScript section. We should merge TypeScript section into that one anyways.

[masterT]

I'm wondering if we want to wait a little bit until it got more stable.

I have no problem with that, I'll keep you posted when it's more stable.

We should merge TypeScript section into that one anyways.

Good idea, I'll only put it in the JavaScript section.

[jelhan]

I'm wondering if we want to wait a little bit until it got more stable.

I have no problem with that, I'll keep you posted when it's more stable.

Do you mind marking the PR as draft for now?

[masterT]

Done!