Create irs-bug.md

.github/ISSUE_TEMPLATE/irs-bug.md

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+---
+name: Report a Bug
+about: report bugs or unexpected behavior.
+---
+
+<!-- 
+Thanks for your contribution! Please fill out this template as good as possible. 
+Important: Contributing Guidelines can be found here: https://eclipse-tractusx.github.io/docs/oss/how-to-contribute
+Checkout the repository README for process description. 
+-->
+
+## Description
+<!-- A clear and concise description of what the bug is. Give as much hints as possible
+- On which Environment did the bug occur
+-->
+## Current behaviour
+
+## Expected behavior
+<!-- A clear and concise description of what you expected to happen. -->
+
+## Steps to reproduce the Bug
+<!-- Please provide a clear procedure how to reproduce the bug. 
+Important technical details: 
+user information, screenshots, browser, app-version, environment, device, etc.
+-->