Added parameters to Box, Ellipse and Bounds now subclasses of BaseShape
Added parameters to Box, Ellipse and Bounds now subclasses of BaseShape

The BaseShape class implements a clone method appropriate for shape
subclasses of Path.

vascotenner/holoviews,mjabri/holoviews,vascotenner/holoviews,vascotenner/holoviews,basnijholt/holoviews,ioam/holoviews,basnijholt/holoviews,mjabri/holoviews,ioam/holoviews,mjabri/holoviews,basnijholt/holoviews,ioam/holoviews