优化继承下的父类解析，支持SmartAny修饰Model

Author: Mccc

Example/Podfile.lock

@@ -8,7 +8,7 @@ PODS:
   - FBSnapshotTestCase/SwiftSupport (2.1.4):
     - FBSnapshotTestCase/Core
   - HandyJSON (5.0.0-beta.1)
-  - SmartCodable (4.2.5)
+  - SmartCodable (4.2.6)
   - SnapKit (5.6.0)
 
 DEPENDENCIES:
@@ -39,7 +39,7 @@ SPEC CHECKSUMS:
   CleanJSON: 910a36465ce4829e264a902ccf6d1455fdd9f980
   FBSnapshotTestCase: 094f9f314decbabe373b87cc339bea235a63e07a
   HandyJSON: 582477127ab3ab65bd2e471815f1a7b846856978
-  SmartCodable: b39182ec8f12298f277a1c0ec7a7c1031bbfce1b
+  SmartCodable: 09bc8e160ecb5fd0a7500cca792eb03e75a06477
   SnapKit: e01d52ebb8ddbc333eefe2132acf85c8227d9c25
 
 PODFILE CHECKSUM: 7f3af03f81934df0c035518074a7abbec8fa9d3f

Example/Pods/Local Podspecs/SmartCodable.podspec.json

@@ -12,7 +12,7 @@
 
 Pod::Spec.new do |s|
   s.name             = 'SmartCodable'
-  s.version          = '4.2.5'
+  s.version          = '4.2.6'
   s.summary          = '数据解析库'
 
   s.homepage         = 'https://github.com/intsig171'