Cosmos.jl

Cosmos.jl wraps and extends Cosmology.jl with ergonomic value types, cached conversion helpers, and a Planck-motivated default cosmology.

Key additions:

• CosmologicalModel consolidates cosmology parameters, caching of conversion lookups, and optional baryon/neutrino metadata.
• Distance/time wrappers (DistanceComoving, TimeLookback, etc.) store their cosmology and expose friendly conversions toward Redshift and ScaleFactor.
• CosmologyPlanck() sets the default cosmology so you can skip parameter wiring for most use cases.
• Typed conversion tables (NamedTuples) and Unitful helpers keep repeated lookups efficient and safe.

Refer to docs/src/examples.md or examples/ to see runnable distance and time conversion snippets.