Create feature_request.md

Author: hrak

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,20 @@
+---
+name: Feature enhancement request
+about: Suggest an idea for this project
+
+---
+
+/kind feature
+
+**Describe the solution you'd like**
+[A clear and concise description of what you want to happen.]
+
+
+**Anything else you would like to add:**
+[Miscellaneous information that will assist in solving the issue.]
+
+
+**Environment:**
+
+- cloudstack-csi-driver version: 
+- Kubernetes version: (use `kubectl version`):