Added Dimensioned.select unit tests
Added Dimensioned.select unit tests

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