chore: add issue template

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,23 @@
+---
+name: Feature request
+about: Suggest an idea or enhancement for this project
+title: ''
+labels: enhancement
+assignees: ''
+---
+
+**Feature Description**
+
+<!-- A clear and concise description of what the feature you are expecting. -->
+
+**Describe the solution you'd like**
+
+<!-- A clear and concise description of what you want to happen. -->
+
+**Describe alternatives you've considered**
+
+<!-- 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. -->