Add issue templates

.github/ISSUE_TEMPLATE/1_BUG.md

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+---
+name: 🐞 Bug Report
+about: Something is broken?
+labels: bug
+---
+
+<!--
+- Please do not report an issue if you are not using "PHP CS Fixer Baseline" directly, but rather a third-party wrapper around it.
+- Please fill in this template according to your issue.
+- Please keep the table shown below at the top of your issue.
+- Please include the output of "composer info | sort" if you installed "PHP CS Fixer Baseline" using Composer.
+- Please post code as text (using proper markup). Do not post screenshots of code.
+- Please make sure that you have configured your PHP interpreter like so: `error_reporting=-1`, `zend.assertions=1`.
+- Please remove this comment before submitting your issue.
+-->
+
+| Q                             | A               |
+|-------------------------------|-----------------|
+| PHP CS Fixer Baseline version | x.y.z           |
+| PHP version                   | x.y.z           |
+| Installation Method           | Composer / PHAR |
+
+#### Summary
+
+<!-- Provide a summary describing the problem you are experiencing. -->
+
+#### Current behavior
+
+<!-- What is the current (buggy) behavior? -->
+
+#### How to reproduce
+
+<!-- Provide steps to reproduce the bug. -->
+
+#### Expected behavior
+
+<!-- What was the expected (correct) behavior? -->

.github/ISSUE_TEMPLATE/2_COMPATIBILITY.md

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+---
+name: ⚠️ PHP Compatibility Issue
+about: A change in PHP requires adaption in PHP CS Fixer Baseline?
+labels: type/change-in-php-requires-adaptation
+---
+
+<!--
+- Please do not report an issue if you are not using "PHP CS Fixer Baseline" directly, but rather a third-party wrapper around it.
+- Please do not report an issue if you are using a third-party extension such as alternative output printers.
+- Please fill in this template according to your issue.
+- Please keep the table shown below at the top of your issue.
+- Please include the output of "composer info | sort" if you installed "PHP CS Fixer Baseline" using Composer.
+- Please post code as text (using proper markup). Do not post screenshots of code.
+- Please remove this comment before submitting your issue.
+-->
+
+| Q                             | A               |
+|-------------------------------|-----------------|
+| PHP CS Fixer Baseline version | x.y.z           |
+| PHP version                   | x.y.z           |
+| Installation Method           | Composer / PHAR |
+
+#### Summary
+
+<!-- Provide a summary describing the problem you are experiencing. -->
+
+#### Current behavior
+
+<!-- What is the current behavior? -->
+
+#### How to reproduce
+
+<!-- Provide steps to reproduce the issue. -->
+
+#### Expected behavior
+
+<!-- What was the expected (correct) behavior? -->

.github/ISSUE_TEMPLATE/3_FEATURE_REQUEST.md

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+---
+name: 🎉 Feature Request
+about: You have a neat idea that should be implemented?
+labels: enhancement
+---
+
+<!-- Provide a summary of the feature you would like to see implemented. -->