feat: add support for RadioMaster TX16S MK3 (#7017)

Co-authored-by: philmoz <phil.a.mitchell@gmail.com>
Co-authored-by: 3djc <3djc@gh.com>
Co-authored-by: Peter Feerick <5500713+pfeerick@users.noreply.github.com>

radio/src/lua/api_general.cpp

@@ -372,6 +372,10 @@ const LuaSingleField luaSingleFields[] = {
     {MIXSRC_TILT_Y, "tilty", "Tilt Y"},
 #endif
 
+#if defined(LUMINOSITY_SENSOR)
+    {MIXSRC_LIGHT, "light", "Light Sensor"},
+#endif
+
 #if defined(PCBHORUS)
     {MIXSRC_SPACEMOUSE_A, "sma", "SpaceMouse A"},
     {MIXSRC_SPACEMOUSE_B, "smb", "SpaceMouse B"},