Added an interface for 3dSeg.
Added an interface for 3dSeg.

FCP-INDI/nipype,sgiavasis/nipype,FCP-INDI/nipype,sgiavasis/nipype,FCP-INDI/nipype,sgiavasis/nipype,sgiavasis/nipype,carolFrohlich/nipype,carolFrohlich/nipype,carolFrohlich/nipype,FCP-INDI/nipype,mick-d/nipype,mick-d/nipype,mick-d/nipype,carolFrohlich/nipype,mick-d/nipype