Add pull request and issue templates

.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
+
+Provide a clear and concise description of the bug and what behavior you are expecting.
+
+## Steps to Reproduce
+
+Provide the tag or hash of the CCPP Framework used to reproduce the bug
+Have you make any modifications to the CCPP Framework code?
+
+Please provide detailed steps for reproducing the issue.
+
+1. step 1
+2. step 2
+3. see the bug...
+
+## Additional Context
+
+Please provide any relevant information about your setup. This is important in case the issue is not reproducible except for under certain conditions.
+
+* Machine
+* Compiler
+* Suite Definition File or Scheme
+* Reference other issues or PRs in other repositories that this is related to, and how they are related.
+
+## Output
+
+Please include any relevant log files, screenshots or other output here.

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: enhancement
+assignees: ''
+
+---
+
+## Description
+Provide a clear and concise description of the problem to be solved.
+
+## Solution
+Add a clear and concise description of the proposed solution.
+
+## Alternatives (optional)
+If applicable, add a description of any alternative solutions or features you've considered.
+
+## Related to (optional)
+Directly reference any issues or PRs in this or other repositories that this is related to, and describe how they are related.

.github/PULL_REQUEST_TEMPLATE/pull_request_template.md

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+## Description of Changes: 
+One or more paragraphs describing the problem, solution, and required changes.
+
+## Tests Conducted: 
+Explicitly state what tests were run on these changes, or if any are still pending (for README or other text-only changes, just put "None required". Make note of the compilers used, the platform/machine, and other relevant details as necessary. For more complicated changes, or those resulting in scientific changes, please be explicit!  
+**OR** Add any links to tests conducted. For example, "See ufs-community/ufs-weather-model/pull/<pr_number>"
+
+## Dependencies:
+Add any links to parent PRs (e.g. SCM and/or UFS PRs). For example:
+- NCAR/ccpp-physics/pull/<pr_number>
+- NOAA-EMC/fv3atm/pull/<pr_number>
+- ufs-community/ufs-weather-model/pull/<pr_number>
+
+## Documentation:
+Does this PR add new capabilities that need to be documented or require modifications to the existing documentation?  If so, brief supporting material can be provided here. Contact the CODEOWNERS if your PR requires extensive updates to the documentation.  See https://github.com/NCAR/ccpp-doc for Technical Documentation or https://dtcenter.org/community-code/common-community-physics-package-ccpp/documentation for the latest Scientific Documentation.
+
+## Issue: 
+If this PR is resolving or referencing one or more issues, in this repository or elewhere, list them here. For example, "Fixes issue mentioned in #123" or "Related to bug in https://github.com/NCAR/other_repository/pull/63".  If an existing issue is not available, please submit an issue to describe the work (e.g. bug report, feature request).
+
+## Contributors (optional): 
+If others have contributed to this work aside from the PR author, list them here
+