add issue template

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: "Bug Report"
+about: Create a report to help us improve
+
+---
+
+<!--
+Thank you for reporting a possible bug in Alibaba Cloud C++ SDK
+
+Please fill in as much of the template below as you can.
+
+Product and API: the product and API you are working on when bug occurs
+Platform: output of `uname -a` (UNIX), or version and 32 or 64-bit (Windows)
+
+
+If possible, please provide code that demonstrates the problem, keeping it as
+simple and free of external dependencies as you can.
+
+If crash, please provide the stack trace.
+
+If build error, please provide compiler infomation: compiler and version, etc
+-->
+
+* **Product and API**:
+* **Platform**:
+* **Mininum Code**
+
+<!-- Please provide more details below this comment. -->

.github/ISSUE_TEMPLATE/bug_report_cn.md

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+---
+name: "缺陷问题反馈"
+about: 提交缺陷问题反馈
+
+---
+
+<!--
+感谢提交问题反馈。
+
+请提供尽量全面的信息协助问题定位修复。
+
+产品和接口：问题发生时工作所在的产品和调用的API
+平台：操作系统信息，类型，版本
+
+如果可能，请提供一份最小问题复现代码。
+
+如果崩溃，请提供错误栈。
+
+如果编译出错，请提供 cmake 版本，编译器版本，编译命令等信息。
+
+-->
+
+* **产品和接口**:
+* **平台**:
+* **最小代码**:
+
+<!-- 请提供其他可能协助问题定位的信息 -->
+