Partial implementation of TGO display.

No threat/detection circles yet.

https://github.com/dcs-liberation/dcs_liberation/issues/2039

game/server/app.py

@@ -8,6 +8,7 @@ from . import (
     flights,
     mapzones,
     navmesh,
+    tgos,
     waypoints,
 )
 from .security import ApiKeyManager
@@ -24,6 +25,7 @@ app.include_router(eventstream.router)
 app.include_router(flights.router)
 app.include_router(mapzones.router)
 app.include_router(navmesh.router)
+app.include_router(tgos.router)
 app.include_router(waypoints.router)