Add issue templates

Author: fwal

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,15 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: bug
+assignees: fwal
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**Workflow configuration (please complete the following information):**
+ - Platform (`runs-on`): [e.g. ubuntu-latest]
+ - Swift version (`swift-version`): [e.g. 5.2]

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,14 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: enhancement
+assignees: fwal
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.