github templates

Add templates for github, for templates to be used in new issues and new
PRs
diff --git a/.github/issue_template.md b/.github/issue_template.md
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+Note: This is just a template, so feel free to use/remove the unnecessary things
+
+### Description
+- Type: Bug | Enhancement\Feature Request | Question
+- Priority: Blocker | Major | Minor
+
+---------------------------------------------------------------
+## Bug
+
+**OS**  
+linux|windows|??
+
+**mbed TLS build:**  
+Version: x.x.x or git commit id  
+Configuration: please attach config.h file  
+Compiler and options (if you used a pre-built binary, please indicate how you obtained it):  
+Additional environment information:  
+
+**peer device TLS stack and version**  
+openSSL | GnuTls | other  
+version:  
+
+**Expected behavior**   
+
+**Actual behavior**  
+
+**Steps to reproduce**  
+
+----------------------------------------------------------------
+## Enhancement\Feature Request
+
+**Incentive for change**  
+
+**Suggested enhancement**  
+
+-----------------------------------------------------------------
+
+## Question
+
+**Please first check for answers in the [mbed TLS knowledge Base](https://tls.mbed.org/kb), and preferebly file an issue in the [mbed TLS support forum](https://tls.mbed.org/discussions)**  
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diff --git a/.github/pull_request_template.md b/.github/pull_request_template.md
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+Notes:
+* Pull requests will not be accepted until:
+-  The submitter has [accepted the online agreement here with a click through](https://developer.mbed.org/contributor_agreement/) 
+   or those that do not wish to create an mbed account, a slightly different agreement can be found [here](https://www.mbed.com/en/about-mbed/contributor-license-agreements/)
+- The PR follows the [mbed TLS coding standards](https://tls.mbed.org/kb/development/mbedtls-coding-standards)
+* This is just a template, so feel free to use/remove the unnecessary things
+## Description
+A few sentences describing the overall goals of the pull request's commits.
+
+
+## Status
+**READY/IN DEVELOPMENT/HOLD**
+
+## Requires Backporting
+When there is a bug fix, it should be backported to legacy supported branches.
+legacy supported branches will not be backported if:
+- This PR is a new feature\enhancement
+- This PR contains changes in the API. If this is true, and there is a need for the fix to be backported, the fix should be handled differently in the legacy branch
+
+Yes | NO  
+What branch?
+
+## Migrations
+If there is any API change, what's the incentive and logic for it.
+
+YES | NO
+
+## Additional comments
+Any additional information that could be of interest
+
+## Todos
+- [ ] Tests
+- [ ] Documentation
+- [ ] Changelog updated
+- [ ] Backported
+
+
+## Steps to test or reproduce
+Outline the steps to test or reproduce the PR here.
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