SMTC-55: Add support for "aspects" in the semantic model

[fpddog]

Adding in the owners registry.

generate draft produced:

{
  "description": "Represents the registry of all Semantic Aspects, i.e. the groups of properties that are related to each other and\nare curated by one owner.",
  "properties": {
    "infosec": {
      "description": "This aspect relates to infosec concerns",
      "id": "infosec",
      "owner": "trust_and_safety",
      "title": "Infosec",
      "type": "string"
    }
  },
  "required": [
    "infosec"
  ],
  "title": "AspectsRegistry",
  "type": "object"
}