chore: Add issue templates from reth

.github/ISSUE_TEMPLATE/feature.yml

@@ -0,0 +1,21 @@
+name: Feature request
+description: Suggest a feature
+labels: ["C-enhancement", "S-needs-triage"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Please ensure that the feature has not already been requested in the issue tracker.
+  - type: textarea
+    attributes:
+      label: Describe the feature
+      description: |
+        Please describe the feature and what it is aiming to solve, if relevant.
+
+        If the feature is for a crate, please include a proposed API surface.
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Additional context
+      description: Add any other context to the feature (like screenshots, resources)