Add IJ and related dependencies.

Needed to make a view for ImageJ.
Signed-off-by: Jean-Yves Tinevez <jeanyves.tinevez@gmail.com>
Add an util package.

With methods and classes for the future view.
Signed-off-by: Jean-Yves Tinevez <jeanyves.tinevez@gmail.com>
A basic view for SpotCollection on an ImagePlus.

Right now: only spots, no selection, no coloring.
Not interactive, no nothing.
Signed-off-by: Jean-Yves Tinevez <jeanyves.tinevez@gmail.com>
An interactive test fir the HyperstackView.

Signed-off-by: Jean-Yves Tinevez <jeanyves.tinevez@gmail.com>