Issue #3390712: Add component variants to SDC

Issue #3390712: Add component variants to SDC

Closes #3390712

core/assets/schemas/v1/metadata-full.schema.json

@@ -25,6 +25,24 @@
           }
         }
       }
+    },
+    "variantDefinition": {
+      "type": "object",
+      "patternProperties": {
+        "^[a-zA-Z0-9_-]+$": {
+          "type": "object",
+          "properties": {
+            "title": {
+              "type": "string",
+              "title": "Title"
+            },
+            "description": {
+              "type": "string",
+              "title": "Description"
+            }
+          }
+        }
+      }
     }
   },
   "type": "object",
@@ -144,6 +162,9 @@
     "slots": {
       "$ref": "metadata.schema.json#/$defs/slotDefinition"
     },
+    "variants": {
+      "$ref": "metadata.schema.json#/$defs/variantDefinition"
+    },
     "template": {
       "type": "string",
       "title": "Template",