Add feature request issue template (#1831)

* Add feature request issue template

* Update .github/ISSUE_TEMPLATE/feature_request.md

Co-authored-by: Sam Xie <xsambundy@gmail.com>

Co-authored-by: Sam Xie <xsambundy@gmail.com>

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,29 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: enhancement
+assignees: ''
+
+---
+
+### Problem Statement
+
+A clear and concise description of what the problem is.
+Ex. I'm always frustrated when [...]
+
+### Proposed Solution
+
+A clear and concise description of what you want to happen.
+
+#### Alternatives
+
+A clear and concise description of any alternative solutions or features you've considered.
+
+#### Prior Art
+
+A clear and concise list of any similar and existing solutions from other projects that provide context to possible solutions.
+
+### Additional Context
+
+Add any other context or screenshots about the feature request here.