init repo.

3party/eigen/.gitlab/issue_templates/Bug Report.md

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+<!--
+Please read this!
+
+Before opening a new issue, make sure to search for keywords in the issues
+filtered by "bug::confirmed" or "bug::unconfirmed" and "bugzilla" label:
+
+- https://gitlab.com/libeigen/eigen/-/issues?scope=all&utf8=%E2%9C%93&state=opened&label_name[]=bug%3A%3Aconfirmed
+- https://gitlab.com/libeigen/eigen/-/issues?scope=all&utf8=%E2%9C%93&state=opened&label_name[]=bug%3A%3Aunconfirmed
+- https://gitlab.com/libeigen/eigen/-/issues?scope=all&utf8=%E2%9C%93&state=opened&label_name[]=bugzilla
+
+and verify the issue you're about to submit isn't a duplicate. -->
+
+### Summary
+<!-- Summarize the bug encountered concisely. -->
+
+### Environment
+<!-- Please provide your development environment here -->
+- **Operating System** : Windows/Linux
+- **Architecture** : x64/Arm64/PowerPC ...
+- **Eigen Version** : 3.3.9
+- **Compiler Version** : Gcc7.0
+- **Compile Flags** : -O3 -march=native
+- **Vector Extension** : SSE/AVX/NEON ...
+
+### Minimal Example
+<!-- If possible, please create a minimal example here that exhibits the problematic behavior.
+You can also link to [godbolt](https://godbolt.org). But please note that you need to click 
+the "Share" button in the top right-hand corner of the godbolt page where you reproduce the sample 
+code to get the share link instead of in your browser address bar. 
+
+You can read [the guidelines on stackoverflow](https://stackoverflow.com/help/minimal-reproducible-example)
+on how to create a good minimal example. -->
+
+```cpp
+//show your code here
+```
+
+### Steps to reproduce
+<!-- Describe how one can reproduce the issue - this is very important. Please use an ordered list. -->
+
+1. first step
+2. second step
+3. ... 
+
+### What is the current *bug* behavior?
+<!-- Describe what actually happens. -->
+
+### What is the expected *correct* behavior?
+<!-- Describe what you should see instead. -->
+
+### Relevant logs
+<!-- Add relevant code snippets or program output within blocks marked by " ``` " -->
+
+<!-- OPTIONAL: remove this section if you are not reporting a compilation warning issue.-->
+### Warning Messages
+<!-- Show us the warning messages you got! -->
+
+<!-- OPTIONAL: remove this section if you are not reporting a performance issue. -->
+### Benchmark scripts and results
+<!-- Please share any benchmark scripts - either standalone, or using [Google Benchmark](https://github.com/google/benchmark). -->
+
+### Anything else that might help
+<!-- It will be better to provide us more information to help narrow down the cause. 
+Including but not limited to the following: 
+- lines of code that might help us diagnose the problem. 
+- potential ways to address the issue.
+- last known working/first broken version (release number or commit hash). --> 
+
+- [ ] Have a plan to fix this issue.

3party/eigen/.gitlab/issue_templates/Feature Request.md

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+### Describe the feature you would like to be implemented.
+
+### Would such a feature be useful for other users? Why?
+
+### Any hints on how to implement the requested feature?
+
+### Additional resources