Added github bug report template

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,41 @@
+---
+name: Bug report
+about: How to create a proper bug report
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**If the issue is about the SDK (build, issue, etc...) open the ticket in the [linphone-sdk](https://github.com/BelledonneCommunications/linphone-sdk) repository or one of it's submodules!**
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Please complete the following information**
+ - Device: [e.g. Samsung Note 20 Ultra]
+ - OS: [e.g. Android 11]
+ - Version of the App [e.g. 4.3.1]
+ - Version of the SDK [e.g 4.4.16]
+
+**SDK logs**
+Enable debug logs in advanced section of the settings, restart the app, reproduce the issue and then go to About page, click on "Send logs" and copy/paste the link here.
+
+**Adb logcat logs**
+In case of a crash of the app, please also provide the stack trace of the crash using adb logcat.
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+**Additional context**
+Add any other context about the problem here.