Update issue templates

Add a Feature request template

.github/ISSUE_TEMPLATE/design_issue.md

@@ -6,6 +6,7 @@ labels: design
 assignees: ''
 
 ---
+
 ## Summary
 
 <!-- Describe the issue in a few sentences. -->

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,32 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: "[Feature]"
+labels: enhancement
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Which component?**
+
+- [ ] consensus
+- [ ] deploy script
+- [ ] wallet
+- [ ] explorer
+- [ ] node script
+- [ ] test automation
+- [ ] demo app
+- [ ] others ...
+
+
+**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.