support for $ref local file and/or over the wire

[ghost]

More of a question than an issue: I am using this library to render some web forms and the "inline" definition in a schema file works; i.e.

... "attributeA": { "$ref": "#/definitions/attributerADef" }, ...

"definitions": { "attributeADef": { ... }, ...

However, does the same work when $ref is a file on the same path OR over the wire:

... "attributeA": { "$ref": "attributerADef.json" }, ...

OR

"attributeA": {
  "$ref": "http:www.example.com/attributeADef.json"
},

which template:

• [ ] MaterialDesignFrameworkModule — Material Design
• [ ] Bootstrap3FrameworkModule — Bootstrap 3
• [ x] Bootstrap4FrameworkModule — Bootstrap 4
• [ ] NoFrameworkModule — plain HTML
• [ ] Other (please specify below)

Thanks