Support Multiple Golden Paths Between Source and Destination

NetBrain currently allows only a single path between a given source and destination to be designated as the golden path, which limits flexibility when multiple valid paths should be tracked as reference paths. This enhancement would allow customers to mark multiple paths between the same endpoints as golden paths simultaneously. Supporting multiple golden paths would better reflect real-world network designs with redundant or equal-cost routing, improving the accuracy of path status monitoring and reducing false deviation alerts.