fix!: refactor PID schemas - EBSIINT-10955

Using the same property names as in https://eur-lex.europa.eu/eli/reg_impl/2024/2977/oj

Also inspired by https://w3c-ccg.github.io/vdl-vocab/

schemas/vcdm1.1/medical-certifications/certificate-professional-competence/schema.metadata.json

@@ -3,5 +3,7 @@
   "id": {
     "base16": "0xdb2f27bb0c8d74d9c16190e4de1e22b39e005a00bd1e0aa51f0e29343bfcb4d6",
     "multibase_base58btc": "zFkbzRiX4Q7vcaMtNpgq7RzkvkhvRTt9KqMHqGWXrGn85"
-  }
+  },
+  "verification": "Documents",
+  "context": "General"
 }