Introduce automatic envelopes

[pshirshov]

We may add metadata to the types in typespace, which would make ueba/json codecs wrap particular type with its metadata, like [ueba-magick][domain-string][version-string][data] and {"domain": "xxx", version: "yyy", content: {...}}.

Modes:

1. Wrap root structure only or Wrap any usage
2. Tag with domain ID or Tag with version only

Also we need to add API for manual wrapping.

It might be a good idea to wrap root types with full meta by default.