Refactored Structural and Object Type Checking

Fixed

• Improve structural type checking through inheritance, required and corrected object type check and validation

Transform Type

Added

• New Types.Transform - for transforming a value during validation

Array `{min,max}Items`

Added

• Support types.Array.{min,max}Items for validation

References

Added

• Concept of value references
• New Types.Omit and Types.Condition

More Graceful Error Handling

Changed

• When an error occurs in union or every, reject with the first non-validation error (it's likely a code error)
• Make Intersection and Union inherit from Any (again) - this is useful for uses

Fix Union Compile

Fixed

• Union types were compiling the old way using compose, use type._compile() instead

Mutate Type

Added

• Add a Mutate type for temporary mutations during tests

New `Rule` Base Class

Changed

• Add Rule base class - Any extends Rule now, while some basic rules come included
• Rewrote the middleware pattern in use - now using next(value) => value where you can forward values and receive back a value - the default next is just the identity function

Correct error message strings

Fixed

• Improved the consistency of error message keys
• Update isType for string sub-types

Remove `ref` option

Changed

• Remove ref from AnyOptions