Add “ISSUE_TEMPLATE.md” and “PULL_REQUEST_TEMPLATE.md”

[Raruto]

Adds the aforementioned templates based on the following: open source templates

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Useful links:

• About issue and pull request templates
• Creating a pull request template for your repository
• Configuring issue templates for your repository
• see Raruto/cockpit/.github/ISSUE_TEMPLATE.md and Raruto/cockpit/.github/PULL_REQUEST_TEMPLATE.md for previews

Have a nice Day, Raruto