chore: add feature request template

Author: royalpinto007

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,12 @@
+---
+name: Feature request
+about: Suggest an idea or improvement
+title: ""
+labels: enhancement
+---
+
+**Problem / use case**
+
+**Proposed solution**
+
+**Alternatives considered**