Add new music discs and models for various shops; remove obsolete files

- Introduced new music discs: "City Under Siege", "Clothing Shop", "Food Mart", "Hat Shop", "Interior Shop", "Pawn Shop", and "Jump Up" with corresponding models and textures.
- Updated sounds.json to include new music disc entries.
- Created new JSON files for music disc models and their textures.
- Removed outdated models and textures for cobblestone, emerald, and stick.
- Deleted unnecessary blockbench textures and environment textures.
- Updated pack metadata to reflect new pack format and supported versions.

assets/minecraft/models/item/city_under_siege6.json

@@ -0,0 +1,6 @@
+{
+  "parent": "minecraft:item/generated",
+  "textures": {
+    "layer0": "item/city_under_siege6"
+  }
+}

assets/minecraft/models/item/clothing_shop0.json

@@ -0,0 +1,6 @@
+{
+  "parent": "minecraft:item/generated",
+  "textures": {
+    "layer0": "item/clothing_shop0"
+  }
+}

assets/minecraft/models/item/cobblestone.json

@@ -1 +0,0 @@
-{"parent":"minecraft:block/cobblestone","overrides":[]}

assets/minecraft/models/item/custom/cui/emerald/model_11101.json

@@ -1 +0,0 @@
-{"textures":{"layer0":"item/custom/cui/emerald/texture_11101"},"parent":"minecraft:item/generated"}

assets/minecraft/models/item/emerald.json

@@ -1 +0,0 @@
-{"parent":"minecraft:item/generated","textures":{"layer0":"minecraft:item/emerald"},"overrides":[{"predicate":{"custom_model_data":11101},"model":"item/custom/cui/emerald/model_11101"}]}

assets/minecraft/models/item/food_mart1.json

@@ -0,0 +1,6 @@
+{
+  "parent": "minecraft:item/generated",
+  "textures": {
+    "layer0": "item/food_mart1"
+  }
+}

assets/minecraft/models/item/hat_shop2.json

@@ -0,0 +1,6 @@
+{
+  "parent": "minecraft:item/generated",
+  "textures": {
+    "layer0": "item/hat_shop2"
+  }
+}

assets/minecraft/models/item/interior_shop3.json

@@ -0,0 +1,6 @@
+{
+  "parent": "minecraft:item/generated",
+  "textures": {
+    "layer0": "item/interior_shop3"
+  }
+}

assets/minecraft/models/item/jump_up5.json

@@ -0,0 +1,6 @@
+{
+  "parent": "minecraft:item/generated",
+  "textures": {
+    "layer0": "item/jump_up5"
+  }
+}

assets/minecraft/models/item/music_disc_13.json

@@ -0,0 +1,50 @@
+{
+  "parent": "item/generated",
+  "textures": {
+    "layer0": "item/music_disc_13"
+  },
+  "overrides": [
+    {
+      "predicate": {
+        "custom_model_data": 37000
+      },
+      "model": "item/clothing_shop0"
+    },
+    {
+      "predicate": {
+        "custom_model_data": 37001
+      },
+      "model": "item/food_mart1"
+    },
+    {
+      "predicate": {
+        "custom_model_data": 37002
+      },
+      "model": "item/hat_shop2"
+    },
+    {
+      "predicate": {
+        "custom_model_data": 37003
+      },
+      "model": "item/interior_shop3"
+    },
+    {
+      "predicate": {
+        "custom_model_data": 37004
+      },
+      "model": "item/pawn_shop4"
+    },
+    {
+      "predicate": {
+        "custom_model_data": 37005
+      },
+      "model": "item/jump_up5"
+    },
+    {
+      "predicate": {
+        "custom_model_data": 37006
+      },
+      "model": "item/city_under_siege6"
+    }
+  ]
+}

assets/minecraft/models/item/pawn_shop4.json

@@ -0,0 +1,6 @@
+{
+  "parent": "minecraft:item/generated",
+  "textures": {
+    "layer0": "item/pawn_shop4"
+  }
+}

assets/minecraft/models/item/stick.json

@@ -1 +0,0 @@
-{"parent":"minecraft:item/handheld","textures":{"layer0":"minecraft:item/stick"},"overrides":[]}