Add JSON schema validation for YAML and JSON AaC

[SlavaVedernikov]

Context

At the moment there is limited validation for YAML/JSON AaC

• YAML syntax
• Interface references in Use flows

It would help if there was AaC syntax validation as well to catch incorrectly expressed properties etc.
It would also help if there was IntelliSense support in some IDEs e.g. VS Code

Requirements

Complete the work on C4InterFlow JSON Schema

C4InterFlow CLI can then use the schema to do additional validation

Publish JSON Schema to https://www.schemastore.org/json/ so that IDE extensions/plugins can load it and use to validate C4InterFlow YAML/JSON AaC