chore: Add Feature Request template

Author: harrytmthy

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,24 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+### Background
+
+Explain the urgency or problem statements.
+
+### Goal
+
+What are the things to achieve.
+
+### Proposal
+
+What is the proposed solution.
+
+### Benefits
+
+What are the benefits of achieving the goal.