fix: implement interfaces in Android sources

[WoLewicki]

PR adding New Architecture support to 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 projects@swmansion.com

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Notes

PR fixing not implemented interfaces in Source components, adding not implemented setters for existing and removing unused images and nativeImages props

[WoLewicki]

@mfazekas is there a reason on some Source components, the existing prop was not implemented in managers?

[mfazekas]

@mfazekas is there a reason on some Source components, the existing prop was not implemented in managers?

It was an overlook, existing should be there for other sources. Just that are mostly used in practice for ShapeSource.

[WoLewicki]

@mfazekas this one also looks ready now 🚀