New example of isolated dSph models
@matthieu to guarantee that the two examples will run, you need first to upload: https://drive.google.com/file/d/1dUNC81Mg-5b1hwrxUgpcPzkY7wxqVFQU/view?usp=drive_link here: http://virgodb.cosma.dur.ac.uk/swift-webstorage/ICs/IsolateddSph/dSph_core.hdf5 and https://drive.google.com/file/d/1AqzGbr9ZzS9QJ67Oi6J0dC8xsXgE3vc8/view?usp=drive_link http://virgodb.cosma.dur.ac.uk/swift-webstorage/ICs/IsolateddSph/dSph_cusp.hdf5