LoopMix128: Blazing Fast and Robust 2^128 Period PRNG

LoopMix128 is an extremely fast pseudo-random number generator (PRNG) with a guaranteed period of 2^128, proven injectivity, and clean passes in both BigCrush and PractRand (32TB). Designed for non-cryptographic applications where speed and statistical quality are paramount, it significantly outperforms standard library generators and rivals or surpasses modern high-speed PRNGs like wyrand and xoroshiro128++. Its performance is backed by rigorous testing, passing BigCrush and PractRand with zero anomalies, and boasting a proven 192-bit injective state enabling parallel streams.