Adding PR template (#191)

Author: at669

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,34 @@
+## Proposed change(s)
+
+Describe the changes made in this PR.
+
+### Useful links (GitHub issues, JIRA tickets, forum threads, etc.)
+
+Provide any relevant links here.
+
+### Types of change(s)
+
+- [ ] Bug fix
+- [ ] New feature
+- [ ] Code refactor
+- [ ] Documentation update
+- [ ] Other (please describe)
+
+## Testing and Verification
+
+Please describe the tests that you ran to verify your changes. Please also provide instructions, ROS packages, and Unity project files as appropriate so we can reproduce the test environment. 
+
+### Test Configuration:
+- Unity Version: [e.g. Unity 2020.2.0f1]
+- Unity machine OS + version: [e.g. Windows 10]
+- ROS machine OS + version: [e.g. Ubuntu 18.04, ROS Noetic]
+- ROS–Unity communication: [e.g. Docker]
+
+## Checklist
+- [ ] Ensured this PR is up-to-date with the `dev` branch
+- [ ] Created this PR to target the `dev` branch
+- [ ] Followed the style guidelines as described in the [Contribution Guidelines](../CONTRIBUTING.md)
+- [ ] Added tests that prove my fix is effective or that my feature works
+- [ ] Updated the documentation as appropriate
+
+## Other comments