Function validateOptions

Validates an options object against a map of validators and defaults.

If input is null, undefined, or not an object the defaults are returned (with a warning for non-nullish non-objects).

Supports special validator types created by:

• validatorOf: recursively validates nested objects
• arrayOf: validates arrays with per-item validation
• anyOf: accepts the first matching validator from a list
• recordOf: validates objects with dynamic keys