design-patterns-modern-cpp 现代 C++ 设计模式 架构原理/分析思考 项目案例 refer https://github.com/liu-jianhao/Cpp-Design-Patterns https://github.com/JakubVojvoda/design-patterns-cpp https://github.com/lkimuk/okdp https://github.com/jaredtao/DesignPattern