Add annotations (traits) with schema

[Artifizer]

Right now schemas traits are not implemented and not validated right, for example:
https://github.com/GlobalTypeSystem/gts-spec/blob/main/examples/events/schemas/gts.x.core.events.type.v1~.schema.json

  "x-event-type-settings": {
    "additionalProperties": false,
    "topicRef": {
      "description": "ID of the topic where events of this type are stored.",
      "type": "string",
      "x-gts-ref":"gts.x.core.events.topic.v1~"
    }
  },

What we need to do is:

1. Introduce new OP#12 - validate schema vs parent/base schema(s)

2. Introduce new standard name for GTS traits, e.g. x-gts-type-trait that will allow to implement traits with automated level merge strategy. The standard libraries will just ignore it, as it's json schema custom annotation (starting with x-)

3. The GTS libraries can react on it and implement the following validation rules:

• try to resolve values from right-most schema to the left-most schema layer by layer

• the final resolved schema must have all the values resolved and have known types for all similarly to what happens when JSON instance is being resolved against it's schema

• To introduce OP#12 in spec

• To introduce new API and tests to resolve schema and schema

• To introduce special x-gts-type-trait keyword in the spec

• To introduce special x-gts-type-trait keyword in the library, that can be configured by the vendor

• To introduce proper logic in gts-rust

• To introduce proper logic in gts-go

• To introduce proper logic in gts-python

• To introduce proper logic in gts-ts

• To introduce proper logic in gts-csharp

• To introduce proper logic in gts-kit

• To introduce proper logic in gts-web

[Artifizer]

Linked issue #61