Added more test files

test/files/correct/data_rp/textures/flipbook_textures.json

@@ -0,0 +1,7 @@
+[
+  {
+    "flipbook_texture": "textures/example",
+    "atlas_tile": "example",
+    "ticks_per_frame": 15
+  }
+]

test/files/correct/data_rp/textures/item_texture.json

@@ -0,0 +1,8 @@
+{
+  "resource_pack_name": "vanilla",
+  "texture_data": {
+    "example": {
+      "textures": "textures/items/example"
+    }
+  }
+}

test/files/correct/data_rp/textures/terrain_texture.json

@@ -0,0 +1,10 @@
+{
+  "num_mip_levels": 4,
+  "padding": 8,
+  "resource_pack_name": "vanilla",
+  "texture_data": {
+    "example": {
+      "textures": "textures/blocks/example"
+    }
+  }
+}