Support function version of mapDispatch at proppy-redux withStore

In original **connect** from react-redux, you can pass a function as a mapDispatch, which accepts dispatch and own component props. Here the full [description](https://github.com/reduxjs/react-redux/blob/master/docs/api.md#connectmapstatetoprops-mapdispatchtoprops-mergeprops-options)

Do you plan to add this feature?

P.S. proppy-redux npm page points to package. So I created issue in this scope.