Add validation description

Signed-off-by: ClemensLinnhoff <[email protected]>

examples/example_asset.xoma

@@ -7,10 +7,11 @@
     "openmaterial_version": "1.0.0",
     "copyright" : "(C) 2023-2024, Example Company",
     "license" : "MPL-2.0",
-    "author" : "[email protected]"
+    "author" : "[email protected]",
     "model_creation_tool": "Blender",
     "creation_date": "20240703T101728Z",
-    "modeling_method" : "Modeled according to images"
+    "modeling_method" : "Modeled according to images",
+    "validation_description" : "The dimensions of the vehicle in x, y and z where compared to a real vehicle. They were accurate within a margin of 0.01 m.
   },
   "material_mapping": [
     ["10;50;255;127", "example_material.xomp", "metal with red paint"]

schemas/asset_schema.json

@@ -54,6 +54,10 @@
         "modeling_method": {
           "type": "string",
           "description": "Description how the 3D model was modeled. Was it modeled based on a 3D scan, based on photos, or freehand?"
+        },
+        "validation_description": {
+          "type": "string",
+          "description": "Was the geometry of the 3D model validated against a real-world object? If yes, how?"
         }
       },
       "required": [