v3.1.1

Changelog

• The builder now respects basic initializer expressions of a constructor. This makes it
  possible to do field renaming or assigning to private fields without requiring an additional
  getter matching the parameter.

  The following is now supported out of the box:

  class MyClass {
    MyClass(int value, {String? name}) 
        // Effectively renaming 'value' to 'data'.
      : data = value,
        // Assigning to a private field + having a null fallback.
        _name = name ?? 'Unnamed';
  
    final int value;
    final String _name;

• Fixed encoding of a map now returns a Map<String, dynamic> where possible
  (instead of a Map<dynamic, dynamic>)

• Fixed supporting expressions in @MappableClass.includeCustomMappers.

• Fixed error when using non-literal values in @MappableValue().

• Fixed generic decoding when using generic superclass.

• Fixed unknown-type bug for serialized non-constructor fields.

• Fixed bug with undetermined includeSubClasses.