Xoshiro PRNGs as drop-in replacements for Stdlib.Random

This package provides the Xoshiro family of pseudo-random number generators for OCaml, with an interface mimmicing that of the standard library. The Xoshiro generator are not cryptographically safe, but they provide better randomness than the standard library.

By default, this package comes as C bindings for efficiency. If bindings are not welcome (eg. to compile to JS), one may depend on xoshiro.pure instead, providing the exact same interface, implemented as pure OCaml.