Add cgs-earth/template repository configuration

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: bug
+assignees: ''
+
+---
+
+
+**Description**
+A clear and concise description of what the bug is.
+
+**Steps to Reproduce**
+Steps to reproduce the behavior:
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Screenshots/Tracebacks**
+If applicable, add screenshots to help explain your problem.
+
+**Environment**
+ - OS:
+ - Python version:
+ - Python env/venv: 
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/documentation_issue.md

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+---
+name: Documentation issue
+about: Create a report to improve documenation
+title: ''
+labels: documentation
+assignees: ''
+
+---
+
+**Description**
+A clear and concise description of the documentation issue or improvement
+
+**Current Documentation**
+Links or description of the current documentation.
+
+**Suggested Improvement**
+Describe the suggested improvement or fix.
+
+**Steps to Reproduce (if applicable)**
+If relevant, steps to reproduce the issue with the current documentation.
+
+**Additional Context**
+Any additional context, screenshots, or code examples.

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: enhancement
+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.

.github/pull_request_template.md

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+# Description
+<!-- Describe the purpose of this pull request -->
+
+# Changes Made
+<!-- Provide a brief overview of the changes implemented in this pull request -->
+
+# Related Issues
+<!-- If this pull request resolves any GitHub issues, reference them here -->
+
+# Additional Notes
+<!-- Any additional information or context about the pull request -->