feat: OAS3 binary media type support (#4592)

* fix(validator-badge): resolve definition URLs against browser location

* use param as meta parameter if not found

* convert request body from Immutable if necessary

* show file upload for `format: binary` and `format: base64` jsonschema strings

* add `dispatchInitialValue` prop to JsonSchemaForm

* add optional subkey parameter to onChange

* add binary media type support to request body

src/core/json-schema-components.js

@@ -34,6 +34,13 @@ export class JsonSchemaForm extends Component {
   static propTypes = JsonSchemaPropShape
   static defaultProps = JsonSchemaDefaultProps
 
+  componentDidMount() {
+    const { dispatchInitialValue, value, onChange } = this.props
+    if(dispatchInitialValue) {
+      onChange(value)
+    }
+  }
+
   render() {
     let { schema, errors, value, onChange, getComponent, fn } = this.props