Add Bug report and Feature request templates

.github/ISSUE_TEMPLATE/bug-report.md

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+---
+name: Bug report
+about: Create a report to help us improve
+
+---
+
+#### 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
+
+or
+
+Post a link to a [CodeSandbox](https://codesandbox.io/). You can start by forking [this one](https://codesandbox.io/s/mz305w3yoy).
+
+#### 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
+
+---
+
+#### 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.
+
+But take a moment to find out whether your idea fits with the scope and aims of the project. It's up to _you_ to make a strong case to convince the project's developers of the merits of this feature.
+
+#### 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.