Add issue templates.

Author: janbarasek

.github/ISSUE_TEMPLATE/Bug_report.md

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+---
+name: "🐛 Bug Report"
+about: "If something isn't working as expected 🤔"
+
+---
+
+Version: ?.?.?
+
+### Bug Description
+... A clear and concise description of what the bug is. A good bug report shouldn't leave others needing to chase you up for more information.
+
+### Steps To Reproduce
+... If possible a minimal demo of the problem ...
+
+### Expected Behavior
+... A clear and concise description of what you expected to happen.
+
+### Possible Solution
+... Only if you have suggestions on a fix for the bug

.github/ISSUE_TEMPLATE/Feature_request.md

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+---
+name: "🚀 Feature Request"
+about: "I have a suggestion (and may want to implement it) 🙂"
+
+---
+
+- Is your feature request related to a problem? Please describe.
+- Explain your intentions.
+- It's up to you to make a strong case to convince the project's developers of the merits of this feature.

.github/ISSUE_TEMPLATE/Support_question.md

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+---
+name: "🤗 Support Question"
+about: "If you have a question 💬"
+
+---
+
+--------------^ Click "Preview" for a nicer view!
+We primarily use GitHub as an issue tracker; for usage and support questions, please check out https://php.baraja.cz. Thanks! 😁.