add templates (#2)

Co-authored-by: ahacke <ahacke@users.noreply.github.com>

Author: ahacke

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: 🐞 Bug
+about: File a bug/issue
+title: '<title>'
+labels: Bug, Needs Triage
+assignees: ''
+
+---
+
+<!--
+Note: Please search to see if an issue already exists for the bug you encountered.
+-->
+
+### Current Behavior:
+<!-- A concise description of what you're experiencing. -->
+
+### Expected Behavior:
+<!-- A concise description of what you expected to happen. -->
+
+### Steps To Reproduce:
+<!--
+Example: steps to reproduce the behavior:
+1. In this environment...
+1. With this config...
+1. Run '...'
+1. See error...
+-->
+
+### Environment:
+<!--
+Example:
+- OS: Ubuntu 20.04
+- Node: 13.14.0
+- npm: 7.6.3
+-->
+
+### Anything else:
+<!--
+Links? References? Anything that will give us more context about the issue that you are encountering!
+-->

.github/ISSUE_TEMPLATE/config.yml

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+blank_issues_enabled: false

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: 🚀 Feature
+about: Propose a new feature
+title: '<title>'
+labels: feature
+assignees: ''
+
+---
+
+### Summary
+<!--
+One paragraph explanation of the feature.
+-->
+### Motivation
+<!--
+Why is this feature of general interest?
+-->

.github/pull_request_template.md

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+# Description
+
+_Please include a summary of the changes and the related issue. Please also include relevant motivation and context. List any dependencies that are required for this change._
+
+Fixes # (issue)
+
+## Type of change
+
+_Please delete options that are not relevant._
+
+- [ ] Bug fix (non-breaking change which fixes an issue)
+- [ ] New feature (non-breaking change which adds functionality)
+- [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
+- [ ] This change requires a documentation update
+
+# How Has This Been Tested?
+
+_Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration_
+
+- [ ] Test A
+- [ ] Test B
+
+# Checklist:
+
+- [ ] My code follows the style guidelines of this project
+- [ ] I have performed a self-review of my code
+- [ ] I have commented my code, particularly in hard-to-understand areas
+- [ ] I have made corresponding changes to the documentation
+- [ ] My changes generate no new warnings
+- [ ] I have added tests that prove my fix is effective or that my feature works
+- [ ] New and existing unit tests pass locally with my changes
+- [ ] Any dependent changes have been merged and published in downstream modules