chore: add issue templates (#368)

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,20 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: "[FEAT]"
+labels: enhancement, feature
+assignees: ''
+
+---
+
+**Problem description**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Solution description**
+A clear and concise description of what you want to happen.
+
+**Alternative solutions**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.