v0.9.3

Release version v0.9.3

Support custom type conversion function(支持自定义类型转换功能)

Custom type conversion: You can customize type conversion, inifile will automatically convert according to the definition you wrote (reduce duplication)
The following are custom rules:

1. Use the INIFILE_TYPE_CONVERTER macro to specialize the custom type (Must have a default constructor);
2. Define encode function, which is used to define how to convert custom types into ini storage strings (the storage string cannot contain newlines);
3. Define decode function, which is used to define how to convert the ini storage string into a custom type;