chore: added GitHub internal files

.github/CONTRIBUTING.md

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+# Contributing to @vuestorefront/<% INTEGRATION %>
+We love your input! We want to make contributing to this project as easy and transparent as possible, whether it's:
+
+- Reporting a bug
+- Discussing the current state of the code
+- Submitting a fix
+- Proposing new features
+- Becoming a maintainer
+
+## We Develop with Github
+We use github to host code, to track issues and feature requests, as well as accept pull requests.
+
+## Any contributions you make will be under the MIT Software License
+In short, when you submit code changes, your submissions are understood to be under the same [MIT License](http://choosealicense.com/licenses/mit/) that covers the project. Feel free to contact the maintainers if that's a concern.
+
+## Report bugs using Github's [issues](https://github.com/vuestorefront/<% INTEGRATION %>/issues)
+We use GitHub issues to track public bugs. Report a bug by [opening a new issue](https://github.com/vuestorefront/<% INTEGRATION %>/issues/new); it's that easy!
+
+## Write bug reports with detail, background, and sample code
+**Great Bug Reports** tend to have:
+
+- A quick summary and/or background
+- Steps to reproduce
+  - Be specific!
+  - Give sample code if you can.
+- What you expected would happen
+- What actually happens
+- The environment you're running the application
+- Notes (possibly including why you think this might be happening, or stuff you tried that didn't work)
+
+People *love* thorough bug reports. I'm not even kidding.
+
+## License
+By contributing, you agree that your contributions will be licensed under its MIT License.

.github/PULL_REQUEST_TEMPLATE.md

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+<!--- Provide a general summary of your changes in the Title above -->
+
+## Description
+<!--- Describe your changes in detail -->
+
+## Related Issue
+<!--- This project only accepts pull requests related to open issues -->
+<!--- If suggesting a new feature or change, please discuss it in an issue first -->
+<!--- If fixing a bug, there should be an issue describing it with steps to reproduce -->
+<!--- Please link to the issue here: -->
+
+## Motivation and Context
+<!--- Why is this change required? What problem does it solve? -->
+
+## How Has This Been Tested?
+<!--- Please describe in detail how you tested your changes. -->
+<!--- Include details of your testing environment, and the tests you ran to -->
+<!--- see how your change affects other areas of the code, etc. -->
+
+## Screenshots (if appropriate):
+
+## Types of changes
+<!--- What types of changes does your code introduce? Put an `x` in all the boxes that apply: -->
+- [ ] Bug fix (non-breaking change which fixes an issue)
+- [ ] New feature (non-breaking change which adds functionality)
+- [ ] Breaking change (fix or feature that would cause existing functionality to change)
+
+## Checklist:
+<!--- Go over all the following points, and put an `x` in all the boxes that apply. -->
+<!--- If you're unsure about any of these, don't hesitate to ask. We're here to help! -->
+- [ ] My code follows the code style of this project.
+- [ ] My change requires a change to the documentation.
+- [ ] I have updated the documentation accordingly.
+- [ ] I have read the **CONTRIBUTING** document.
+- [ ] I have added tests to cover my changes.
+- [ ] All new and existing tests passed.

.github/lock.yml

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+# Configuration for lock-threads - https://github.com/dessant/lock-threads
+# disable lock bot for now
+daysUntilLock: 3650
+exemptLabels: []
+lockLabel: false
+lockComment: >
+  This thread has been automatically locked since there has not been
+  any recent activity after it was closed. Please open a new issue for
+  related bugs.

.github/stale.yml

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+# Configuration for probot-stale - https://github.com/probot/stale
+daysUntilStale: 30
+daysUntilClose: 7
+staleLabel: stale
+exemptLabels:
+  - "cmty:feature-request"
+  - "feature-request"
+  - "WIP"
+  - "pending"
+  - "discussion"
+exemptAssignees: true
+only: issues
+markComment: >
+  Thanks for your contribution to @vue-storefront/magento!
+  This issue has been automatically marked as stale because it has not had
+  recent activity. It will be closed if no further activity occurs.
+  If you would like this issue to remain open:
+   1. Verify that you can still reproduce the issue in the latest version
+   1. Comment the steps to reproduce it
+  Issues that are labeled as `pending` will not be automatically marked as stale.