feat(Worklets): Create a stub of Worklets Module

[tjzel]

This pull request is one of many which replace

• #6378

since that PR is extensive and too difficult to review.

Summary

Adding a second Native Module for Worklets.

It's initial responsibility for now is forwarding valueUnpackerCode to Reanimated Module. While it seems silly, it's a good start since it sets up the whole pipeline of:

typescript
├── android
│   └── cpp
└── ios
    └── cpp

(I was too lazy to use mermaid, long live mkdir -p)

Follow up PRs will move more and more responsibilities from Reanimated to Worklets.

Requires:

• #6556
• #6557

Test plan

• [x] All GitHub Actions pass
• [x] Compatibility Github Action passes
• [x] debug Android works
• [x] release Android works
• [x] debug iOS works
• [x] release iOS works