Add Feature Request Template

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,32 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: "[Feature Request]"
+labels: ''
+assignees: ''
+
+---
+
+<!--
+This repository tracks issues and feature requests related to Mojo Programming Language and the Playground. 
+-->
+
+## Request
+
+<!--
+Brief summary of the request. 
+-->
+
+### Motivation
+
+<!--
+This section should give context on what the proposed design is enabling. Describe the problem that your feature seeks to address
+What is the value to the product/user of doing this?
+-->
+
+### Description and Requirements
+
+<!-- 
+Minimum functional attributes the feature design should provide.
+Add any other context about your feature as appropriate.
+-->