Add issue and PR template

.github/ISSUE_TEMPLATE/config.yml

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+blank_issues_enabled: true

.github/ISSUE_TEMPLATE/other.yml

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+name: Other
+description: Any other question or issue
+
+body:
+- type: textarea
+  attributes:
+    label: Issue
+    description: >
+      A clear and concise description of the question or issue
+  validations:
+    required: true
+- type: markdown
+  attributes:
+    value: >
+      Thanks for contributing!

.github/PULL_REQUEST_TEMPLATE.md

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+<!-- Replace [ ] with [X] to check a box -->
+
+- [ ] Closes #xxxx (Replace xxxx with the GitHub issue number, or delete line).
+- [ ] Tests added and passed if fixing a bug or adding a new feature.
+
+### Description
+<!-- Describe your changes in detail -->
+