[expo-av] Expo Audio Video universal module (#3187)

# Why

Expo is moving towards a more modular structure.

# How

- generated `expo-av` from a universal module template
- moved code over
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[expo-av] Expo Audio Video universal module (#3187)

# Why

Expo is moving towards a more modular structure.

# How

- generated `expo-av` from a universal module template
- moved code over
- replaced all React references with Expo ones

# Test Plan

- to be tested on playlist, audioloop, etc.

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