setting : Update issue templates

.github/ISSUE_TEMPLATE/🔧feature-request.md

@@ -0,0 +1,16 @@
+---
+name: "\U0001F527Feature request"
+about: Describe this issue template's purpose here.
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+## 📍 TODO
+
+<!--구현할 기능 작성-->
+
+## ➕ ETC
+
+<!--추가적으로 설명 혹은 논의 사항이 필요할 때 작성-->