Make constructor ParameterizedType(Type) public

[mariotaku]

When implementing custom converter of Retrofit, I found LoganSquare.mapperFor(ParameterizedType) is really useful, however, constructor ParameterizedType(Type) isn't public so it's hard to create ParameterizedType.

Example:

public class ObjectParseConverter implements Converter<ResponseBody, Object> {
    private final Type type;

    public ObjectParseConverter(final Type type) {
        this.type = type;
    }

    @Override
    public Object convert(final ResponseBody value) throws IOException {
        return LoganSquare.parse(value.byteStream(), new ParameterizedType(type));
    }
}