fix: replace deprecated OpaqueToken with InjectionToken (#508)
fix: replace deprecated OpaqueToken with InjectionToken (#508)


formly-js/ng2-formly,formly-js/ng-formly,ngx-formly/ngx-formly,ngx-formly/ngx-formly,ngx-formly/ngx-formly,formly-js/ng2-formly,formly-js/ng2-formly,ngx-formly/ngx-formly,formly-js/ng-formly