Add endurance range rings for aircraft and weapons

[duyminh1998]

Description

Allow players to see how much range their aircraft and weapons have based on remaining fuel. This would help in planning flights and engagements more strategically.

Why

By displaying the current fuel-based range, players can make informed decisions about whether they have enough resources to reach a target or return safely.

Acceptance Criteria

• Range rings and/or labels are visible on the map or UI, reflecting remaining fuel.
• An option or panel exists to toggle the visibility of these range indicators.
• Code is refactored to cleanly implement the range calculation and display logic.

Additional Context (optional)

• Consider adding a menu panel for enabling or disabling range rings and labels.
• Existing code may need refactoring to ensure maintainability and scalability.