Add Issue and PR Templates to Pepr

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: possible-bug
+assignees: ''
+---
+
+### Environment
+Device and OS:
+App version:
+Kubernetes distro being used:
+Other:
+
+### Steps to reproduce
+1.
+
+### Expected result
+
+### Actual Result
+
+### Visual Proof (screenshots, videos, text, etc)
+
+### Severity/Priority
+
+### Additional Context
+Add any other context or screenshots about the technical debt 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
+
+- **Given** a state
+- **When** an action is taken
+- **Then** something happens
+
+### Describe alternatives you've considered
+(optional) 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/tech_debt.md

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+---
+name: Tech debt
+about: Record something that should be investigated or refactored in the future.
+title: ''
+labels: 'tech-debt'
+assignees: ''
+---
+
+### Describe what should be investigated or refactored
+A clear and concise description of what should be changed/researched. Ex. This piece of the code is not DRY enough [...]
+
+### Links to any relevant code
+(optional) i.e. - https://github.com/defenseunicorns/pepr/blob/24f1f253b1db4c9d97717c0282b8f39c74d3ace1/README.md?plain=1#L3
+
+### Additional context
+Add any other context or screenshots about the technical debt here.

.github/pull_request_template.md

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+## Description
+
+...
+
+## Related Issue
+
+Fixes #
+<!-- or -->
+Relates to #
+
+## Type of change
+
+- [ ] Bug fix (non-breaking change which fixes an issue)
+- [ ] New feature (non-breaking change which adds functionality)
+- [ ] Other (security config, docs update, etc)
+
+## Checklist before merging
+
+- [ ] Test, docs, adr added or updated as needed
+- [ ] [Contributor Guide Steps](https://github.com/defenseunicorns/pepr/blob/main/CONTRIBUTING.md#submitting-a-pull-request) followed