Updated several animal drawn veichles to use Reins and Tackle

Same as I did to the Gig Carriage before with the other carts. Before, it was using the same generic "controls" part as cars and such.

data/json/vehicles/farm.json

@@ -187,7 +187,7 @@
       { "x": 0, "y": -1, "parts": [ "frame_wood_vertical_left", "wood box" ] },
       { "x": 0, "y": 1, "parts": [ "frame_wood_vertical_right", "wood box" ] },
       { "x": 1, "y": -1, "parts": [ "frame_wood_nw", "seat_wood", "wheel_mount_wood_steerable", "wheel_wood_b" ] },
-      { "x": 1, "y": 0, "parts": [ "frame_wood_cross", "seat_wood", "controls" ] },
+      { "x": 1, "y": 0, "parts": [ "frame_wood_cross", "seat_wood", "reins_tackle" ] },
       { "x": 1, "y": 1, "parts": [ "frame_wood_ne", "seat_wood", "wheel_mount_wood_steerable", "wheel_wood_b" ] },
       { "x": 2, "y": -1, "part": "yoke_harness" },
       { "x": 2, "y": 1, "part": "yoke_harness" },
@@ -223,7 +223,7 @@
       { "x": 1, "y": -2, "parts": [ "frame_wood_vertical_left", "clothboard_nw", "roof_cloth" ] },
       { "x": 1, "y": 2, "parts": [ "frame_wood_vertical_right", "clothboard_ne", "roof_cloth" ] },
       { "x": 2, "y": -1, "parts": [ "frame_wood_horizontal_front", "seat_wood" ] },
-      { "x": 2, "y": 0, "parts": [ "frame_wood_horizontal_front", "seat_wood", "controls" ] },
+      { "x": 2, "y": 0, "parts": [ "frame_wood_horizontal_front", "seat_wood", "reins_tackle" ] },
       { "x": 2, "y": 1, "parts": [ "frame_wood_horizontal_front", "seat_wood" ] },
       {
         "x": 2,
@@ -278,7 +278,7 @@
       [ " ## " ]
     ],
     "parts": [
-      { "x": 0, "y": 0, "parts": [ "frame_wood_nw", "seat_wood", "controls" ] },
+      { "x": 0, "y": 0, "parts": [ "frame_wood_nw", "seat_wood", "reins_tackle" ] },
       { "x": 0, "y": 1, "parts": [ "frame_wood_ne", "seat_wood" ] },
       { "x": 1, "y": 0, "part": "yoke_harness" },
       { "x": 1, "y": 1, "part": "yoke_harness" },