update issue_template for bug

Summary

ask more information for bug reports

Rationale

Explain the rationale for the changes (possible link to a Request For Comments or to an issue).

Implementation Details

Additional notes

Copyright

The copyright owner is COPYRIGHT OWNER (OR OWNER'S AGENT) and has signed the ORFEO ToolBox Contributor License Agreement.

---

Check before merging:

• All discussions are resolved
• At least 2 votes from core developers, no vote.
• The feature branch is (reasonably) up-to-date with the base branch
• Dashboard is green
• Copyright owner has signed the ORFEO ToolBox Contributor License Agreement