Add CODEOWNERS and issue template for reporting bugs, feature request…

…ing (#450)

* Add auto assign and issue template

* Add code owners

.github/CODEOWNERS

@@ -0,0 +1,11 @@
+#####################################################
+#
+# List of approvers for this repository
+#
+#####################################################
+#
+# Learn about CODEOWNERS file format:
+#  https://help.github.com/en/articles/about-code-owners
+#
+
+* @aws/cloudwatch-agent

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+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.
+
+**Steps to reproduce**
+If possible, provide a recipe for reproducing the error.
+
+**What did you expect to see?**
+A clear and concise description of what you expected to see.
+
+**What did you see instead?**
+A clear and concise description of what you saw instead.
+
+**What version did you use?**
+Version: (e.g., `v1.247350.0`, etc)
+
+**What config did you use?**
+Config: (e.g. the agent json config file)
+
+**Environment**
+OS: (e.g., "Ubuntu 20.04")
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.