UH-60L mod support

Resolves #1964 but adding CTLD will require the use of Liberation plugins and thus are not included in this pull request.

- Implemented support for the UH-60L mod by =X51= Kinkkujuustovoileipa, Cubeboy, Jonas, JinxxDCS, Dorian, =X51= Parzival & =X51= Lawson.
- Because the standard DCS tankers will not fly below 160ish knots, the UH-60L mod team have included a modified version of the KC-130 tanker designed for refueling at speeds of 120-130kts.

pydcs_extensions/mod_units.py

@@ -6,6 +6,7 @@ from pydcs_extensions.highdigitsams import highdigitsams
 from pydcs_extensions.jas39.jas39 import JAS39Gripen, JAS39Gripen_AG
 from pydcs_extensions.su57.su57 import Su_57
 import pydcs_extensions.frenchpack.frenchpack as frenchpack
+from pydcs_extensions.uh60l.uh60l import UH_60L, KC130J
 
 MODDED_AIRPLANES = [
     A_4E_C,
@@ -15,9 +16,13 @@ MODDED_AIRPLANES = [
     VSN_F104S,
     VSN_F104S_AG,
     Hercules,
+    KC130J,
     JAS39Gripen,
     JAS39Gripen_AG,
 ]
+MODDED_HELICOPTERS = [
+    UH_60L,
+]
 MODDED_VEHICLES = [
     frenchpack._FIELD_HIDE,
     frenchpack._FIELD_HIDE_SMALL,