Setup issue templates and stale config.

Author: jwr1

.github/ISSUE_TEMPLATE/_bug_report.md

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+---
+name: "🐛 Bug report"
+about: "Create a report to help us improve."
+title: ""
+labels: "bug"
+assignees: ""
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/_feature_request.md

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+---
+name: "✨ Feature request"
+about: "Suggest an idea for this project."
+title: ""
+labels: "enhancement"
+assignees: ""
+---
+
+**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.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.

.github/ISSUE_TEMPLATE/blank_issue.md

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+---
+name: "Blank issue"
+about: "Don’t see your issue here? Open a blank issue."
+title: ""
+labels: "needs triage"
+assignees: ""
+---

.github/ISSUE_TEMPLATE/config.yml

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+blank_issues_enabled: false

.github/stale.yml

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+# Number of days of inactivity before an issue becomes stale
+daysUntilStale: 60
+# Number of days of inactivity before a stale issue is closed
+daysUntilClose: 14
+# Issues with these labels will never be considered stale
+exemptLabels:
+  - depfu
+  - not stale
+# Label to use when marking an issue as stale
+staleLabel: stale
+# Comment to post when marking an issue as stale. Set to `false` to disable
+markComment: >
+  This issue has been automatically marked as stale because it has not had
+  recent activity. It will be closed in 14 days if no further activity occurs. Thank you
+  for your contributions.
+
+  Use the 'not stale' label to prevent the issue from automatically closing.