DevTools ImmutableJS support

const devToolsHook = window && window.__REACT_DEV_TOOLS_HOOK__;

if( devToolsHook ){
    const { addInnerStateInspector } = devToolsHook;

    if( addInnerStateInspector ){
        const showAsArray = x => x.toArray(),
              showAsObject = x => x.toObject();

        addInnerStateInspector( List, showAsArray );
        addInnerStateInspector( Stack, showAsArray );
        addInnerStateInspector( Set, showAsArray );
        addInnerStateInspector( OrderedSet, showAsArray );
        addInnerStateInspector( Map, showAsObject );
        addInnerStateInspector( OrderedMap, showAsObject );
    }
}