PULL_REQUEST_TEMPLATE.md

Generally describe what this PR will do, and why it is needed

• List specific new features and changes to project components

Related Issues

• List any Issues this PR addresses or solves

Dependencies

• List any other unmerged PRs that this PR depends on

Breaking Changes

• List any breaking API/ABI changes (and apply the pr-majorVersion label)

Checklist

• I have read the contribution guidelines.
• I have updated the documentation, if applicable.
• I have tested my change(s) in the test suite, and added new test cases where necessary.
• My code follows the Gaffer project's prevailing coding style and conventions.