Create pull_request_template.md

.github/pull_request_template.md

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+Thank you for contributing to this repository!
+
+You can help us review your changes by answering these questions.
+They are all optional, but the more information you provide the easier it will be for us to review your changes.
+Everyone here is a volunteer, so please help us out if you can.
+
+* **What does this PR do?**
+
+* **Is this PR related to another issue, or is it part of a larger body of work?**
+  Please feel free to provide as much context or links to external sites as you want!
+
+* **Does this PR introduce a breaking change?**
+  If so what changes might users need to make in their application due to this PR?
+
+* **How can this PR be tested?**
+  If this is not covered by the automated tests please help us by showing us the steps needed to verify the changes work.
+
+* **Other information**