Copied OpenSearch repository template files.

Signed-off-by: Shephali Mittal <[email protected]>

.github/ISSUE_TEMPLATE/BUG_TEMPLATE.md

@@ -0,0 +1,31 @@
+---
+name: 🐛 Bug report
+about: Create a report to help us improve
+title: '[BUG]'
+labels: 'bug, untriaged'
+assignees: ''
+---
+
+**What is the bug?**
+A clear and concise description of the bug.
+
+**How can one reproduce the bug?**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**What is the expected behavior?**
+A clear and concise description of what you expected to happen.
+
+**What is your host/environment?**
+ - OS: [e.g. iOS]
+ - Version [e.g. 22]
+ - Plugins
+
+**Do you have any screenshots?**
+If applicable, add screenshots to help explain your problem.
+
+**Do you have any additional context?**
+Add any other context about the problem.