Fix polygon orientation function to handle near-degenerate cases via precondition fallback

Summary of Changes

Adds robust error handling to the orientation_2 function to handle cases where the is_simple_2 precondition check fails during polygon partitioning operations, even when the polygon passes polygon.is_simple() initially.

The issue occurs due to numerical precision problems with nearly collinear points. The solution implements a try-catch approach that first attempts the original precondition check, but gracefully falls back to the orientation_2_no_precondition version if the check fails.

This prevents the partitioning algorithms (particularly optimal_convex_partition_2) from failing with seemingly simple polygons, making CGAL more robust for real-world applications with imprecise geometry.

Release Management

• Affected package(s): Polygon
• Issue(s) solved: fix optimal_convex_partition_2 fails with very simple polygon #8828
• Feature/Small Feature: N/A
• License and copyright ownership: Same as the existing file