feat: publish rnskia prefab to allow RN Skia to be used in third party libraries

[mrousavy]

need this for VisionCamera v3 :)

[wcandillon]

this may also fix #1358

[chrfalch]

Tested this with clean RN apps version 0.67, 0.68... 0.71, all failed with the following error message:

* What went wrong:
Execution failed for task ':shopify_react-native-skia:buildCMakeDebug[arm64-v8a]'.
> [CXX1404] did not find implicitly required targets: rnskia

Could this be something with the prefab target? Does it need to be declared somewhere?

[mrousavy]

@chrfalch I think my latest commit fixes that, but I'm still in the middle of testing.

[chrfalch]

I'll test a bit later - why didn't we just change rnskia -> reactskia in the gradle file under the prefab instead of in the cmake file??

[mrousavy]

Because RNSkia is the C++ namespace and that makes more sense to me tbh

[chrfalch]

I've now tested this on RN 0.68 to 0.71 with the new changes. It seems like adding the prefab true fails on RN 0.68 and below. I added a suggestion on how we can avoid this error.