Fix door model UV for open and close (#2372)

Introduce _c and _d door types to correctly render the texture faces for the open and closed state.

mods/doors/models/door_a.obj

@@ -1,7 +1,7 @@
 # Blender v2.76 (sub 0) OBJ File: 'door_a.blend'
 # www.blender.org
 mtllib door_a.mtl
-o Cube_Cube.001
+o door_a
 v 0.499000 -0.499000 -0.499000
 v 0.499000 1.499000 -0.499000
 v 0.499000 -0.499000 -0.375000

mods/doors/models/door_a2.obj

@@ -0,0 +1,50 @@
+# Blender v2.79 (sub 0) OBJ File: ''
+# www.blender.org
+mtllib door_a2.mtl
+o door_a2
+v -0.499000 1.499000 -0.499000
+v -0.499000 -0.499000 -0.499000
+v -0.499000 -0.499000 -0.375000
+v -0.499000 1.499000 -0.375000
+v 0.499000 -0.499000 -0.375000
+v 0.499000 1.499000 -0.375000
+v 0.499000 -0.499000 -0.499000
+v 0.499000 1.499000 -0.499000
+vt 0.894737 1.000000
+vt 0.894737 0.000000
+vt 0.842105 0.000000
+vt 0.842105 1.000000
+vt 0.421052 1.000000
+vt 0.421052 0.000000
+vt 0.000001 0.000000
+vt 0.000001 1.000000
+vt 0.894737 1.000000
+vt 0.894737 0.000000
+vt 0.947368 0.000000
+vt 0.947368 1.000000
+vt 0.842105 1.000000
+vt 0.842105 0.000000
+vt 0.421052 0.000000
+vt 0.421052 1.000000
+vt 0.947368 0.000000
+vt 0.947368 0.500000
+vt 1.000000 0.500000
+vt 1.000000 0.000000
+vt 1.000000 1.000000
+vt 1.000000 0.500000
+vt 0.947368 0.500000
+vt 0.947368 1.000000
+vn -1.0000 -0.0000 0.0000
+vn 0.0000 -0.0000 1.0000
+vn 1.0000 0.0000 0.0000
+vn 0.0000 0.0000 -1.0000
+vn 0.0000 -1.0000 0.0000
+vn 0.0000 1.0000 0.0000
+usemtl None.009
+s 1
+f 1/1/1 2/2/1 3/3/1 4/4/1
+f 4/5/2 3/6/2 5/7/2 6/8/2
+f 6/9/3 5/10/3 7/11/3 8/12/3
+f 8/13/4 7/14/4 2/15/4 1/16/4
+f 2/17/5 7/18/5 5/19/5 3/20/5
+f 8/21/6 1/22/6 4/23/6 6/24/6

mods/doors/models/door_b.obj

@@ -1,40 +1,50 @@
-# Blender v2.76 (sub 0) OBJ File: 'door_b.blend'
+# Blender v2.79 (sub 0) OBJ File: ''
 # www.blender.org
 mtllib door_b.mtl
-o Cube_Cube.001
-v -0.499000 -0.499000 -0.499000
-v -0.499000 1.499000 -0.499000
-v -0.499000 -0.499000 -0.375000
-v -0.499000 1.499000 -0.375000
-v 0.499000 -0.499000 -0.499000
+o door_b
 v 0.499000 1.499000 -0.499000
-v 0.499000 -0.499000 -0.375000
 v 0.499000 1.499000 -0.375000
+v 0.499000 -0.499000 -0.375000
+v 0.499000 -0.499000 -0.499000
+v -0.499000 1.499000 -0.375000
+v -0.499000 -0.499000 -0.375000
+v -0.499000 1.499000 -0.499000
+v -0.499000 -0.499000 -0.499000
+vt 0.894736 1.000000
+vt 0.947368 1.000000
+vt 0.947368 0.000000
+vt 0.894736 0.000000
 vt 0.842105 1.000000
-vt 0.842105 0.000000
-vt 0.894737 0.000000
-vt 0.894737 1.000000
 vt 0.421053 1.000000
 vt 0.421053 0.000000
-vt 0.947368 0.000000
-vt 0.947368 1.000000
+vt 0.842105 0.000000
+vt 0.842105 1.000000
+vt 0.894736 1.000000
+vt 0.894736 0.000000
+vt 0.842105 0.000000
+vt 0.421053 1.000000
 vt 0.000000 1.000000
 vt 0.000000 0.000000
-vt 1.000000 0.000000
+vt 0.421053 0.000000
 vt 1.000000 0.500000
 vt 0.947368 0.500000
+vt 0.947368 1.000000
 vt 1.000000 1.000000
-vn -1.000000 0.000000 0.000000
-vn 0.000000 0.000000 1.000000
-vn 1.000000 0.000000 0.000000
-vn 0.000000 0.000000 -1.000000
-vn 0.000000 -1.000000 0.000000
-vn 0.000000 1.000000 0.000000
-usemtl None
-s off
-f 2/1/1 1/2/1 3/3/1 4/4/1
-f 4/5/2 3/6/2 7/2/2 8/1/2
-f 8/4/3 7/3/3 5/7/3 6/8/3
-f 6/9/4 5/10/4 1/6/4 2/5/4
-f 1/11/5 5/12/5 7/13/5 3/7/5
-f 6/8/6 2/13/6 4/12/6 8/14/6
+vt 1.000000 0.000000
+vt 0.947368 0.000000
+vt 0.947368 0.500000
+vt 1.000000 0.500000
+vn 1.0000 0.0000 0.0000
+vn 0.0000 -0.0000 1.0000
+vn -1.0000 0.0000 0.0000
+vn 0.0000 0.0000 -1.0000
+vn 0.0000 -1.0000 0.0000
+vn 0.0000 1.0000 0.0000
+usemtl None.007
+s 1
+f 1/1/1 2/2/1 3/3/1 4/4/1
+f 2/5/2 5/6/2 6/7/2 3/8/2
+f 5/9/3 7/10/3 8/11/3 6/12/3
+f 7/13/4 1/14/4 4/15/4 8/16/4
+f 4/17/5 3/18/5 6/19/5 8/20/5
+f 7/21/6 5/22/6 2/23/6 1/24/6

mods/doors/models/door_b2.obj

@@ -0,0 +1,50 @@
+# Blender v2.79 (sub 0) OBJ File: ''
+# www.blender.org
+mtllib door_b2.mtl
+o door_b2
+v 0.499000 1.499000 -0.499000
+v 0.499000 1.499000 -0.375000
+v 0.499000 -0.499000 -0.375000
+v 0.499000 -0.499000 -0.499000
+v -0.499000 1.499000 -0.375000
+v -0.499000 -0.499000 -0.375000
+v -0.499000 1.499000 -0.499000
+v -0.499000 -0.499000 -0.499000
+vt 0.842105 1.000000
+vt 0.894737 1.000000
+vt 0.894737 0.000000
+vt 0.842105 0.000000
+vt 0.421052 1.000000
+vt 0.000001 1.000000
+vt 0.000001 0.000000
+vt 0.421052 0.000000
+vt 0.894737 1.000000
+vt 0.947368 1.000000
+vt 0.947368 0.000000
+vt 0.894737 0.000000
+vt 0.842105 1.000000
+vt 0.421052 1.000000
+vt 0.421052 0.000000
+vt 0.842105 0.000000
+vt 1.000000 0.500000
+vt 0.947368 0.500000
+vt 0.947368 1.000000
+vt 1.000000 1.000000
+vt 1.000000 0.000000
+vt 0.947368 0.000000
+vt 0.947368 0.500000
+vt 1.000000 0.500000
+vn 1.0000 0.0000 0.0000
+vn 0.0000 -0.0000 1.0000
+vn -1.0000 0.0000 0.0000
+vn 0.0000 0.0000 -1.0000
+vn 0.0000 -1.0000 0.0000
+vn 0.0000 1.0000 0.0000
+usemtl None.010
+s 1
+f 1/1/1 2/2/1 3/3/1 4/4/1
+f 2/5/2 5/6/2 6/7/2 3/8/2
+f 5/9/3 7/10/3 8/11/3 6/12/3
+f 7/13/4 1/14/4 4/15/4 8/16/4
+f 4/17/5 3/18/5 6/19/5 8/20/5
+f 7/21/6 5/22/6 2/23/6 1/24/6