v1.06: 3D radar, new secondary weapon visuals and radio calls

- The radar is now 3D, and vertical lines show the height of enemies and allies.
- Shields now show a visible hexagonal film. Allied shields are blue and enemy shields are red.
- Mines are now metal and glow blue for allies and red for enemies.
- Added a 3D model for missiles.
- Pilots now call out on the radio when they use a secondary weapon.