Add github issue and pull request template (#118)

.github/ISSUE_TEMPLATE.md

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+## Description
+
+
+## Expected Behavior
+
+
+## Actual Behavior
+
+
+## Possible Fix
+
+
+## Steps to Reproduce
+1.
+2.
+3.
+4.
+
+## Your Environment
+* Version:
+* Browser Name and version:
+* Operating System and version (desktop or mobile):

.github/PULL_REQUEST_TEMPLATE.md

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+## Description
+
+
+## Types of changes
+- [ ] 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 change)
+
+## Checklist:
+- [ ] My code follows the code style
+- [ ] All methods have a docheader with type declarations
+- [ ] I have updated the documentation accordingly.
+- [ ] I have added tests to cover my changes.