feat: add load method

[WoLewicki]

PR concerning New Architecture support in the library 🎉

We at Software Mansion have been working on improving support for the new architecture for quite a while now. If you need help with anything related to New Architecture, like:

• migrating your library
• migrating your app
• investigating issues
• improving performance

or you just want to ask any questions, hit us up on [email protected]

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Summary

PR adding load method needed for dynamic frameworks to work with the library. See facebook/react-native#37274 for more information.

[kirillzyusko]

Oh, I knew it would hit me at some point of time 🙃

It was in my ToDo list, to check how the library works with dynamic frameworks. I haven't digged into all internals, but may I ask you how to test these changes? Just add use_frameworks to Podfile? Without this line the compilation will fail or it will be a runtime error?

Sorry if questions sound stupid, just thinking whether it's worth to add checks to CI somehow 👀

[kirillzyusko]

Do not pay an attention to failing CI job - it's just because you are external contributor and I still haven't figured out how to fix them for external contributions 😅

[kirillzyusko]

Anyway, I think it's a great addition and I don't want to stop this PR from being merged just because of the questions!

Changes look good to me! Thank you for contribution!

[WoLewicki]

I haven't digged into all internals, but may I ask you how to test these changes? Just add use_frameworks to Podfile? Without this line the compilation will fail or it will be a runtime error?

You should specify ENV['USE_FRAMEWORKS'] = 'dynamic' in your app's Podfile. If you compile it without my code, the interop layer will be used instead of the fabric code you added for this component. I think you should see it by adding breakpoint in initWithFrame method and see that it is not called then.