Add Forrestal support, use in US 1975.

https://github.com/dcs-liberation/dcs_liberation/issues/1657

game/data/radar_db.py

@@ -1,4 +1,5 @@
 from dcs.ships import (
+    Forrestal,
     PIOTR,
     MOSCOW,
     VINSON,
@@ -85,24 +86,25 @@ UNITS_WITH_RADAR = {
     AirDefence.FuMG_401,
     AirDefence.FuSe_65,
     # Ships
-    VINSON,
-    PERRY,
-    TICONDEROG,
     ALBATROS,
-    KUZNECOW,
-    MOLNIYA,
-    MOSCOW,
-    NEUSTRASH,
-    PIOTR,
-    REZKY,
-    CV_1143_5,
-    Stennis,
     CVN_71,
     CVN_72,
     CVN_73,
-    USS_Arleigh_Burke_IIa,
+    CV_1143_5,
+    Forrestal,
+    KUZNECOW,
     LHA_Tarawa,
+    MOLNIYA,
+    MOSCOW,
+    NEUSTRASH,
+    PERRY,
+    PIOTR,
+    REZKY,
+    Stennis,
+    TICONDEROG,
     Type_052B,
-    Type_054A,
     Type_052C,
+    Type_054A,
+    USS_Arleigh_Burke_IIa,
+    VINSON,
 }