Merge pull request #2704 from dpfaffenbauer/cla

add CLA action

.github/workflows/cla-check.yml

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+name: CLA Check
+on:
+  issue_comment:
+    types: [created]
+  pull_request_target:
+    types: [opened, closed, synchronize]
+
+jobs:
+  CLAAssistant:
+    runs-on: ubuntu-latest
+    steps:
+      - name: "CLA Assistant"
+        if: (github.event.comment.body == 'recheck' || github.event.comment.body == 'I have read the CLA Document and I hereby sign the CLA') || github.event_name == 'pull_request_target'
+        uses: contributor-assistant/github-action@2.5.0
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          PERSONAL_ACCESS_TOKEN: ${{ secrets.CLA_ACTION_ACCESS_TOKEN }}
+        with:
+          path-to-signatures: 'signatures/version1/cla.json'
+          path-to-document: 'https://github.com/cla-assistant/github-action/blob/master/SAPCLA.md' # e.g. a CLA or a DCO document
+          branch: "main"
+          allowlist: user1,bot*
+          remote-organization-name: "coreshop"
+          remote-repository-name: "cla"

CLA.md

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+# Contributor License Agreement
+
+The following terms are used throughout this agreement:
+
+**You** - the person or legal entity including its affiliates asked to accept this agreement. An affiliate is any entity
+that controls or is controlled by the legal entity, or is under common control with it.
+
+**Project** - is an umbrella term that refers to any and all coreshop open source projects.
+
+**Contribution** - any type of work that is submitted to a Project, including any modifications or additions to existing
+work.
+
+Submitted - conveyed to a Project via a pull request, commit, issue, or any form of electronic, written, or verbal
+communication with coreshop, contributors or maintainers.
+
+# 1. Grant of Copyright License.
+
+Subject to the terms and conditions of this agreement, You grant to the Projects’ maintainers, contributors, users and
+to coreshop a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce,
+prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Your contributions and such
+derivative works. Except for this license, You reserve all rights, title, and interest in your contributions.
+
+# 2. Grant of Patent License.
+
+Subject to the terms and conditions of this agreement, You grant to the Projects’ maintainers, contributors, users and
+to coreshop a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this
+section) patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer your contributions,
+where such license applies only to those patent claims licensable by you that are necessarily infringed by your
+contribution or by combination of your contribution with the project to which this contribution was submitted.
+
+If any entity institutes patent litigation - including cross-claim or counterclaim in a lawsuit - against You alleging
+that your contribution or any project it was submitted to constitutes or is responsible for direct or contributory
+patent infringement, then any patent licenses granted to that entity under this agreement shall terminate as of the date
+such litigation is filed.
+
+# 3. Source of Contribution.
+
+Your contribution is either your original creation, based upon previous work that, to the best of your knowledge, is
+covered under an appropriate open source license and you have the right under that license to submit that work with
+modifications, whether created in whole or in part by you, or you have clearly identified the source of the contribution
+and any license or other restriction (like related patents, trademarks, and license agreements) of which you are
+personally aware.