new decoder, new encoder, new feature.

V4.0.0 Release Notes
New Feature: Support for watchOS usage
New Feature: Support for visionOS usage
New Feature: Support for tvOS usage
New Feature: Custom encoder support, allowing for custom encoding, i.e., mappingForValue.
New Feature: Support for custom strategies for any type of Value, including Int, Bool, etc.
Optimization: Optimized decoder, synchronized with the master branch of Codable.
Optimization: Improved enum parsing, no longer requiring defaultCase.
Optimization: Enhanced README with detailed Chinese instructions.
Bugfix: Fixed a memory issue in concurrent logging.

SmartAny使用优化

包含SmartAny的model转json失败的优化