Chris McKnight

Allow row selection

3

Allow selecting a row and providing an event when the row is selected.

Sometimes the lazy loading lags for some reason. Might be an issue with updating the visible rows. Might be able to improve performance using `take` and `skip` from RxJS.

Pull the CSS out of `styles` so it can be overridden if desired. Provide the default CSS in the package and add to the build process.