Complete mess of vehicle changes (CleverRaven#68248)

* initial commit

* move car_sports_atomic to TEST_DATA

* and to aftershock since it uses it

* add bicycle_folding to vehicle groups

* rename motorcycle_rail

* part two

* replace mountable heater with integrated

* replace mounted cooler with integrated one

* you should copy-from it, not replace it

* add cooler as separate item

* lint

* tweak vehicle efficiency test accordingly

* more test fixes

* Remove bicycle_folding

* i don't know what i'm doing

data/json/items/vehicle/utilities.json

@@ -49,6 +49,18 @@
     "price_postapoc": 1500,
     "melee_damage": { "bash": 12 }
   },
+  {
+    "type": "GENERIC",
+    "copy-from": "mountable_cooler",
+    "id": "integrated_cooler",
+    "name": { "str": "small integrated cooler" },
+    "description": "A small vehicle-mounted area cooler.",
+    "weight": "6000 g",
+    "volume": "3750 ml",
+    "price": 10000,
+    "price_postapoc": 750,
+    "melee_damage": { "bash": 3 }
+  },
   {
     "type": "GENERIC",
     "id": "mountable_heater",

data/json/vehicleparts/vehicle_parts.json

@@ -1358,6 +1358,16 @@
     "breaks_into": [ { "item": "steel_lump" }, { "item": "steel_chunk", "count": [ 1, 3 ] }, { "item": "scrap", "count": [ 1, 3 ] } ],
     "damage_reduction": { "all": 15 }
   },
+  {
+    "id": "integrated_heater_small",
+    "copy-from": "mountable_heater_small",
+    "description": "Set of tubes, that move heat from the engine into the vehicle cabin, heating it up.",
+    "type": "vehicle_part",
+    "location": "",
+    "name": { "str": "small integrated heater" },
+    "//": "can't be installed or unistalled, can only be bashed away",
+    "requirements": { "install": { "skills": [ [ "mechanics", 99 ] ] }, "removal": { "skills": [ [ "mechanics", 99 ] ] } }
+  },
   {
     "id": "mountable_cooler",
     "type": "vehicle_part",
@@ -1381,6 +1391,20 @@
     "damage_reduction": { "all": 15 },
     "variants": [ { "symbols": "C", "symbols_broken": ":" } ]
   },
+  {
+    "id": "integrated_cooler",
+    "copy-from": "mountable_cooler",
+    "type": "vehicle_part",
+    "location": "",
+    "name": { "str": "small integrated cooler" },
+    "description": "Small set of mechanisms, that cool the vehicle out when turned on.",
+    "item": "integrated_cooler",
+    "requirements": {
+      "install": { "skills": [ [ "mechanics", 4 ], [ "electronics", 1 ] ], "time": "3 h", "using": [ [ "vehicle_screw", 1 ] ] },
+      "removal": { "skills": [ [ "mechanics", 4 ], [ "electronics", 1 ] ], "time": "3 h", "using": [ [ "vehicle_screw", 1 ] ] },
+      "repair": { "skills": [ [ "mechanics", 3 ] ], "time": "60 s", "using": [ [ "adhesive", 1 ] ] }
+    }
+  },
   {
     "type": "vehicle_part",
     "id": "controls_electronic",

data/json/vehicles/bikes.json

@@ -36,18 +36,6 @@
       { "x": -1, "y": 0, "parts": [ "small_storage_battery", "engine_electric_tiny" ] }
     ]
   },
-  {
-    "id": "bicycle_folding",
-    "type": "vehicle",
-    "name": "Folding Bicycle",
-    "blueprint": [ "o#o" ],
-    "parts": [
-      { "x": 0, "y": 0, "parts": [ "folding_frame", "saddle#pedal", "horn_bicycle", "foot_pedals" ] },
-      { "x": 1, "y": 0, "parts": [ "folding_frame", "wheel_mount_light_steerable", "wheel_bicycle" ] },
-      { "x": -1, "y": 0, "parts": [ "folding_frame", "wheel_mount_light" ] },
-      { "x": -1, "y": 0, "parts": [ "wheel_bicycle#rear", "basketsm#bike_rear" ] }
-    ]
-  },
   {
     "id": "motorcycle_cross",
     "type": "vehicle",