PRNG Library with Pyth Entropy Integration

[baileynottingham]

This pull request introduces a new Pseudorandom Number Generation (PRNG) library designed to work seamlessly with Pyth Entropy. The library provides a suite of functions for generating, manipulating, and converting random numbers from a Pyth Entropy seed.

Key Features:

• Utilizes Pyth Entropy as a secure seed source
• Includes functions for generating random bytes, integers, and permutations
• Provides utility functions for expanding randomness and type conversions
• Fully documented with NatSpec comments for easy integration and usage

[vercel]

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