Fix SkyStone chest model issues that I had introduced back in 1.8. (#4542)

This makes the chest 1 pixel higher to restore the look it had in 1.7.
Since the skystone chest's texture is a grungy mess, only the most
obvious texture problems were fixed, while for the skystone block chest,
the look should be close to what it was now.
Also introduces caching for the skystone chest's block shape.

src/main/resources/assets/appliedenergistics2/models/item/sky_stone_chest.json

@@ -7,94 +7,71 @@
   "elements": [
     {
       "name": "Base",
-      "from": [1.0, 0.0, 1.0],
-      "to": [15.0, 10.0, 15.0],
+      "from": [1, 0, 1],
+      "to": [15, 10, 15],
       "shade": false,
       "faces": {
         "north": {
-          "texture": "#0",
-          "uv": [3.5, 8.25, 7, 10.75]
+          "uv": [3.5, 8.25, 7, 10.75],
+          "rotation": 180,
+          "texture": "#0"
         },
         "east": {
-          "texture": "#0",
-          "uv": [0.0, 8.25, 3.5, 10.75]
+          "uv": [0, 8.25, 3.5, 10.75],
+          "rotation": 180,
+          "texture": "#0"
         },
         "south": {
-          "texture": "#0",
-          "uv": [10.5, 8.25, 14, 10.75]
+          "uv": [10.5, 8.25, 14, 10.75],
+          "rotation": 180,
+          "texture": "#0"
         },
         "west": {
-          "texture": "#0",
-          "uv": [7, 8.25, 10.5, 10.75]
+          "uv": [7, 8.25, 10.5, 10.75],
+          "rotation": 180,
+          "texture": "#0"
         },
-        "up": {
-          "texture": "#0",
-          "uv": [3.5, 0.0, 7, 3.5]
-        },
-        "down": {
-          "texture": "#0",
-          "uv": [7, 0.0, 10.5, 3.5]
-        }
+        "up": { "uv": [3.5, 0, 7, 3.5], "texture": "#0" },
+        "down": { "uv": [7, 0, 10.5, 3.5], "texture": "#0" }
       }
     },
     {
       "name": "Lid",
-      "from": [1.0, 10.0, 1.0],
-      "to": [15.0, 15.0, 15.0],
+      "from": [1, 10, 1],
+      "to": [15, 15, 15],
       "shade": false,
       "faces": {
         "north": {
-          "texture": "#0",
-          "uv": [3.5, 3.5, 7, 4.75]
-        },
-        "east": {
-          "texture": "#0",
-          "uv": [0.0, 3.5, 3.5, 4.75]
+          "uv": [3.5, 3.5, 7, 4.75],
+          "rotation": 180,
+          "texture": "#0"
         },
+        "east": { "uv": [0, 3.5, 3.5, 4.75], "rotation": 180, "texture": "#0" },
         "south": {
-          "texture": "#0",
-          "uv": [10.5, 3.5, 14, 4.75]
+          "uv": [10.5, 3.5, 14, 4.75],
+          "rotation": 180,
+          "texture": "#0"
         },
         "west": {
-          "texture": "#0",
-          "uv": [7, 3.5, 10.5, 4.75]
+          "uv": [7, 3.5, 10.5, 4.75],
+          "rotation": 180,
+          "texture": "#0"
         },
-        "up": {
-          "texture": "#0",
-          "uv": [3.5, 0.0, 7, 3.5]
-        },
-        "down": {
-          "texture": "#0",
-          "uv": [7, 0.0, 10.5, 3.5]
-        }
+        "up": { "uv": [7, 0, 10.5, 3.5], "rotation": 270, "texture": "#0" },
+        "down": { "uv": [7, 0, 10.5, 3.5], "texture": "#0" }
       }
     },
     {
       "name": "Knob",
-      "from": [7.0, 7.0, 0.0],
-      "to": [9.0, 11.0, 1.0],
+      "from": [7, 7, 0],
+      "to": [9, 11, 1],
       "shade": false,
       "faces": {
-        "north": {
-          "texture": "#0",
-          "uv": [0.25, 0.25, 0.75, 1.25]
-        },
-        "east": {
-          "texture": "#0",
-          "uv": [0, 0.25, 0.25, 1.25]
-        },
-        "west": {
-          "texture": "#0",
-          "uv": [0.75, 0.25, 1.5, 1.25]
-        },
-        "up": {
-          "texture": "#0",
-          "uv": [0.25, 0.0, 0.75, 0.25]
-        },
-        "down": {
-          "texture": "#0",
-          "uv": [0.75, 0.0, 1.5, 0.25]
-        }
+        "north": { "uv": [0.25, 0.25, 0.75, 1.25], "texture": "#0" },
+        "east": { "uv": [0, 0.25, 0.25, 1.25], "texture": "#0" },
+        "west": { "uv": [0.75, 0.25, 1.5, 1.25], "texture": "#0" },
+        "up": { "uv": [0.25, 0, 0.75, 0.25], "texture": "#0" },
+        "down": { "uv": [0.75, 0, 1.5, 0.25], "texture": "#0" }
       }
     }
   ]