OneCAD-Simulation/.github/pull_request_template.md

Closes #

What and why

How it was verified

Checklist

• The issue was assigned to me before I started (see CONTRIBUTING.md)
• cargo fmt --all, cargo clippy -p <crates I touched> --all-targets -- -D warnings and their tests pass
• No code, text or data from GPL-family projects or commercial CAE products