add issue template

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,39 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Describe the bug**  
+A clear and concise description of what the bug is.
+
+**Reproduction Steps**  
+Steps to reproduce the behavior:
+
+**Expected behavior**  
+A clear and concise description of what you expected to happen.
+
+**Log Output**  
+Include relevant log entries or error messages that are related to the problem.You can attach log files if they are too large.
+
+**System Environment:**
+
+- OS: Name and version (e.g., Windows 10, Ubuntu 20.04).
+- Architecture: x86_64, armv7, etc.
+- Visual Studio/GCC：Version A.B.C
+
+**Tool/SDK Version:**
+
+- SDK: Version A.B.C
+- OrbbecViewer：: Version A.B.C
+
+**Device Information:**
+
+- Model: Device model name.
+- Firmware Version: Firmware revision number.
+
+**Additional context**  
+Add any other context about the problem here.