Angular 9/8/6/5 branches

[rhalff]

In case it's useful for anyone needing to support this library on newer versions of angular I have several branches here which try to keep up with the latest angular version:

https://github.com/rhalff/angular2-json-schema-form

There are no functional changes, the latest version have been re-arranged a bit though.
The versions have not been published to npm. You can just fork it and then point to git from within your package.json

@dschnelldavis ping?

Dependencies should be added like this:

    "@ngsf/common": "github:rhalff/angular2-json-schema-form#angular-9-common-dist",
    "@ngsf/json-schema-form": "github:rhalff/angular2-json-schema-form#angular-9-json-schema-form-dist",
    "@ngsf/no-framework": "github:rhalff/angular2-json-schema-form#angular-9-no-framework-dist",
    "@ngsf/material-design-framework": "github:rhalff/angular2-json-schema-form#angular-9-material-design-framework-dist",
    "@ngsf/bootstrap3-framework": "github:rhalff/angular2-json-schema-form#angular-9-bootstrap3-framework-dist",
    "@ngsf/bootstrap4-framework": "github:rhalff/angular2-json-schema-form#angular-9-bootstrap4-framework-dist",
    "@ngsf/widget-library": "github:rhalff/angular2-json-schema-form#angular-9-widget-library-dist"

Intention was to release it as an @ngsf package, but I haven't done that yet.