Add issue/PR templates (#111)

* Add issue templates

Bug report, Feature request

* Add pull request template

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,26 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: "[Bug] "
+labels: 'status: needs testing, type: bug'
+assignees: ''
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Launch '...'
+2. Execute '....'
+3. 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

@@ -0,0 +1,20 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: "[Feature] "
+labels: 'type: 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/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,28 @@
+## Pull Request Etiquette
+
+<!--
+  There are several guidelines you should follow in order for your
+  Pull Request to be merged.
+-->
+
+- [ ] I have checked the PRs for upcoming features/bug fixes.
+
+<!--
+  It is sometimes better to include more changes in a single commit. 
+  If you find yourself having an overwhelming amount of commits, you
+  can **rebase** your branch.
+-->
+
+### Changes
+
+- [ ] Internal code
+- [ ] API (affecting end-user code)
+- [ ] Other: \_____ <!-- Insert other type here -->
+
+<!-- Replace "NaN" with an issue number if this is a response to an issue -->
+
+Closes Issue: NaN
+
+## Description
+
+Replace this sentence with general description of what your Pull Request does.